Add preset instruments
This commit is contained in:
Skyler Lehmkuhl
parent
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# Lightningbeam Factory Instruments
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This directory contains bundled factory instruments for Lightningbeam DAW.
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## Directory Structure
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Instruments are organized by category:
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```
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instruments/
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keyboards/ # Sampled keyboard instruments
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piano/
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samples/ # MP3 audio samples
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A1.mp3
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C1.mp3
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...
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piano.json # MultiSampler configuration
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epiano/
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...
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synthesizers/ # Synthesizer presets (node graph-based)
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bass.json
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lead.json
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pad.json
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...
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drums/ # Drum kits and percussion
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acoustic_kit/
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...
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```
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## Instrument Definition Format
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Each instrument is a JSON file that defines a MultiSampler node configuration:
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```json
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{
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"name": "Instrument Name",
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"description": "Brief description",
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"version": "1.0",
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"node_type": "MultiSampler",
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"parameters": {
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"gain": 1.0,
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"attack": 0.001,
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"release": 0.5,
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"transpose": 0
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},
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"layers": [
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{
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"sample_path": "./samples/C4.mp3",
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"root_note": 60, // MIDI note number (C4 = 60)
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"key_range": [58, 62], // MIDI notes [min, max]
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"velocity_range": [0, 127] // Velocity [min, max]
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}
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]
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}
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```
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## MIDI Note Numbers
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- C1 = 24, A1 = 33
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- C2 = 36, A2 = 45
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- C3 = 48, A3 = 57
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- C4 = 60 (middle C), A4 = 69
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- C5 = 72, A5 = 81
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- C6 = 84, A6 = 93
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- C7 = 96, A7 = 105
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## Sample Format Guidelines
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**Factory Samples (bundled):**
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- Format: MP3 (for size efficiency)
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- Sample rate: 44.1 kHz recommended
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- Bit depth: 16-bit minimum
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- Total size: Keep under 50MB per instrument
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**User Samples (external):**
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- Format: WAV, FLAC, MP3, OGG
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- Any sample rate/bit depth supported
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- No size restrictions
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## Adding New Instruments
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1. Create a new directory: `instruments/my-instrument/`
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2. Add samples to: `instruments/my-instrument/samples/`
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3. Create configuration: `instruments/my-instrument/my-instrument.json`
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4. Reference samples with relative paths: `./samples/filename.mp3`
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## Loading Instruments
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Instruments are loaded via the frontend and can be:
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- Dragged into the node graph editor
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- Selected from the instrument browser
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- Loaded programmatically via the MultiSampler API
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{
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"metadata": {
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"name": "Grand Piano",
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"description": "Acoustic grand piano with multi-octave sampling",
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"author": "Lightningbeam",
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"version": 1,
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"tags": ["piano", "keyboard", "acoustic"]
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},
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"midi_targets": [0],
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"output_node": 2,
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"nodes": [
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{
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"id": 0,
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"node_type": "MidiInput",
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"name": "MIDI In",
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"parameters": {},
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"position": [100.0, 100.0]
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},
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{
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"id": 1,
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"node_type": "MultiSampler",
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"name": "Piano Sampler",
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"parameters": {
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"0": 1.0,
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"1": 0.001,
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"2": 0.5,
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"3": 0.0
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},
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"sample_data": {
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"type": "multi_sampler",
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"layers": [
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{ "file_path": "samples/C1.mp3", "key_min": 0, "key_max": 28, "root_key": 24, "velocity_min": 0, "velocity_max": 127 },
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{ "file_path": "samples/A1.mp3", "key_min": 29, "key_max": 34, "root_key": 33, "velocity_min": 0, "velocity_max": 127 },
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{ "file_path": "samples/C2.mp3", "key_min": 35, "key_max": 40, "root_key": 36, "velocity_min": 0, "velocity_max": 127 },
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{ "file_path": "samples/A2.mp3", "key_min": 41, "key_max": 46, "root_key": 45, "velocity_min": 0, "velocity_max": 127 },
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{ "file_path": "samples/C3.mp3", "key_min": 47, "key_max": 52, "root_key": 48, "velocity_min": 0, "velocity_max": 127 },
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{ "file_path": "samples/A3.mp3", "key_min": 53, "key_max": 58, "root_key": 57, "velocity_min": 0, "velocity_max": 127 },
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{ "file_path": "samples/C4.mp3", "key_min": 59, "key_max": 64, "root_key": 60, "velocity_min": 0, "velocity_max": 127 },
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{ "file_path": "samples/A4.mp3", "key_min": 65, "key_max": 70, "root_key": 69, "velocity_min": 0, "velocity_max": 127 },
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{ "file_path": "samples/C5.mp3", "key_min": 71, "key_max": 76, "root_key": 72, "velocity_min": 0, "velocity_max": 127 },
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{ "file_path": "samples/A5.mp3", "key_min": 77, "key_max": 82, "root_key": 81, "velocity_min": 0, "velocity_max": 127 },
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{ "file_path": "samples/C6.mp3", "key_min": 83, "key_max": 88, "root_key": 84, "velocity_min": 0, "velocity_max": 127 },
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{ "file_path": "samples/A6.mp3", "key_min": 89, "key_max": 94, "root_key": 93, "velocity_min": 0, "velocity_max": 127 },
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{ "file_path": "samples/C7.mp3", "key_min": 95, "key_max": 100, "root_key": 96, "velocity_min": 0, "velocity_max": 127 },
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{ "file_path": "samples/A7.mp3", "key_min": 101, "key_max": 127, "root_key": 105, "velocity_min": 0, "velocity_max": 127 }
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]
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},
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"position": [350.0, 100.0]
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},
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{
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"id": 2,
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"node_type": "AudioOutput",
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"name": "Out",
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"parameters": {},
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"position": [600.0, 100.0]
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}
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],
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"connections": [
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{ "from_node": 0, "from_port": 0, "to_node": 1, "to_port": 0 },
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{ "from_node": 1, "from_port": 0, "to_node": 2, "to_port": 0 }
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]
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}
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{
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"metadata": {
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"name": "Deep Bass",
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"description": "Thick sub bass with sawtooth oscillator",
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"author": "Lightningbeam",
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"version": 1,
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"tags": ["bass", "sub", "synth"]
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},
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"midi_targets": [0],
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"output_node": 6,
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"nodes": [
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{
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"id": 0,
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"node_type": "MidiInput",
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"name": "MIDI In",
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"parameters": {},
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"position": [100.0, 100.0]
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},
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{
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"id": 1,
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"node_type": "MidiToCV",
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"name": "MIDI→CV",
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"parameters": {},
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"position": [300.0, 100.0]
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},
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{
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"id": 2,
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"node_type": "Oscillator",
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"name": "Osc",
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"parameters": {
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"0": 110.0,
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"1": 0.7,
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"2": 1.0
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},
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"position": [500.0, 80.0]
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},
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{
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"id": 3,
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"node_type": "ADSR",
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"name": "Amp Env",
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"parameters": {
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"0": 0.005,
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"1": 0.2,
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"2": 0.8,
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"3": 0.3
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},
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"position": [500.0, 200.0]
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},
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{
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"id": 4,
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"node_type": "Gain",
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"name": "VCA",
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"parameters": {
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"0": 1.0
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},
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"position": [700.0, 100.0]
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},
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{
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"id": 5,
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"node_type": "Filter",
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"name": "LP Filter",
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"parameters": {
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"0": 800.0,
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"1": 1.5,
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"2": 0.0
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},
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"position": [900.0, 100.0]
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},
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{
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"id": 6,
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"node_type": "AudioOutput",
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"name": "Out",
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"parameters": {},
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"position": [1100.0, 100.0]
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}
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],
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"connections": [
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{ "from_node": 0, "from_port": 0, "to_node": 1, "to_port": 0 },
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{ "from_node": 1, "from_port": 0, "to_node": 2, "to_port": 0 },
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{ "from_node": 1, "from_port": 1, "to_node": 3, "to_port": 0 },
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{ "from_node": 2, "from_port": 0, "to_node": 4, "to_port": 0 },
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{ "from_node": 3, "from_port": 0, "to_node": 4, "to_port": 1 },
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{ "from_node": 4, "from_port": 0, "to_node": 5, "to_port": 0 },
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{ "from_node": 5, "from_port": 0, "to_node": 6, "to_port": 0 }
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]
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}
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{
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"metadata": {
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"name": "Bright Lead",
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"description": "Piercing lead synth with filter modulation",
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"author": "Lightningbeam",
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"version": 1,
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"tags": ["lead", "synth", "solo"]
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},
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"midi_targets": [0],
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"output_node": 7,
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"nodes": [
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{
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"id": 0,
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"node_type": "MidiInput",
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"name": "MIDI In",
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"parameters": {},
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"position": [100.0, 100.0]
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},
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{
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"id": 1,
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"node_type": "MidiToCV",
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"name": "MIDI→CV",
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"parameters": {},
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"position": [300.0, 100.0]
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},
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{
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"id": 2,
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"node_type": "Oscillator",
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"name": "Osc",
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"parameters": {
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"0": 440.0,
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"1": 0.6,
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"2": 2.0
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},
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"position": [500.0, 60.0]
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},
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{
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"id": 3,
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"node_type": "LFO",
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"name": "Filter Mod",
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"parameters": {
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"0": 5.0,
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"1": 0.5,
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"2": 0.0,
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"3": 0.0
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},
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"position": [500.0, 200.0]
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},
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{
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"id": 4,
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"node_type": "Filter",
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"name": "LP Filter",
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"parameters": {
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"0": 2000.0,
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"1": 2.0,
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"2": 0.0
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},
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"position": [700.0, 100.0]
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},
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{
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"id": 5,
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"node_type": "ADSR",
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"name": "Amp Env",
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"parameters": {
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"0": 0.01,
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"1": 0.1,
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"2": 0.6,
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"3": 0.2
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},
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"position": [700.0, 240.0]
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},
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{
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"id": 6,
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"node_type": "Gain",
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"name": "VCA",
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"parameters": {
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"0": 1.0
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},
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"position": [900.0, 150.0]
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},
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{
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"id": 7,
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"node_type": "AudioOutput",
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"name": "Out",
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"parameters": {},
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"position": [1100.0, 150.0]
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}
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],
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"connections": [
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{ "from_node": 0, "from_port": 0, "to_node": 1, "to_port": 0 },
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{ "from_node": 1, "from_port": 0, "to_node": 2, "to_port": 0 },
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{ "from_node": 1, "from_port": 1, "to_node": 5, "to_port": 0 },
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{ "from_node": 2, "from_port": 0, "to_node": 4, "to_port": 0 },
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{ "from_node": 3, "from_port": 0, "to_node": 4, "to_port": 1 },
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{ "from_node": 4, "from_port": 0, "to_node": 6, "to_port": 0 },
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{ "from_node": 5, "from_port": 0, "to_node": 6, "to_port": 1 },
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{ "from_node": 6, "from_port": 0, "to_node": 7, "to_port": 0 }
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]
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}
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{
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"metadata": {
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"name": "Lush Pad",
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"description": "Ambient pad with reverb and chorus",
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"author": "Lightningbeam",
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"version": 1,
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"tags": ["pad", "ambient", "synth"]
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},
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"midi_targets": [0],
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"output_node": 10,
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"nodes": [
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{
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"id": 0,
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"node_type": "MidiInput",
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"name": "MIDI In",
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"parameters": {},
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"position": [100.0, 150.0]
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},
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{
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"id": 1,
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"node_type": "MidiToCV",
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"name": "MIDI→CV",
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"parameters": {},
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"position": [300.0, 150.0]
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},
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{
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"id": 2,
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"node_type": "Oscillator",
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"name": "Osc 1",
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"parameters": {
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"0": 440.0,
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"1": 0.4,
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"2": 0.0
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},
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"position": [500.0, 100.0]
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},
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{
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"id": 3,
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"node_type": "Oscillator",
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"name": "Osc 2",
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"parameters": {
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"0": 442.0,
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"1": 0.4,
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"2": 0.0
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},
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"position": [500.0, 200.0]
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},
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{
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"id": 4,
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"node_type": "Mixer",
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"name": "Osc Mix",
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"parameters": {
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"0": 1.0,
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"1": 1.0,
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"2": 0.0,
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"3": 0.0
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},
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"position": [700.0, 150.0]
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},
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{
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"id": 5,
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"node_type": "Filter",
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"name": "LP Filter",
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"parameters": {
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"0": 1500.0,
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"1": 0.707,
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"2": 0.0
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},
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"position": [900.0, 150.0]
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},
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{
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"id": 6,
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"node_type": "ADSR",
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"name": "Amp Env",
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"parameters": {
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"0": 0.5,
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"1": 0.3,
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"2": 0.7,
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"3": 1.0
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},
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"position": [900.0, 280.0]
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},
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{
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"id": 7,
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"node_type": "Gain",
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"name": "VCA",
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"parameters": {
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"0": 1.0
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},
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"position": [1100.0, 200.0]
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},
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{
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"id": 8,
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"node_type": "Chorus",
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"name": "Chorus",
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"parameters": {
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"0": 0.5,
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"1": 0.6,
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"2": 0.4
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},
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"position": [1300.0, 200.0]
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},
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{
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"id": 9,
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"node_type": "Reverb",
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"name": "Reverb",
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"parameters": {
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"0": 0.7,
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"1": 0.5,
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"2": 0.5
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},
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"position": [1500.0, 200.0]
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},
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{
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"id": 10,
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"node_type": "AudioOutput",
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"name": "Out",
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"parameters": {},
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"position": [1700.0, 200.0]
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}
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],
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"connections": [
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{ "from_node": 0, "from_port": 0, "to_node": 1, "to_port": 0 },
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{ "from_node": 1, "from_port": 0, "to_node": 2, "to_port": 0 },
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{ "from_node": 1, "from_port": 0, "to_node": 3, "to_port": 0 },
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{ "from_node": 1, "from_port": 1, "to_node": 6, "to_port": 0 },
|
||||
{ "from_node": 2, "from_port": 0, "to_node": 4, "to_port": 0 },
|
||||
{ "from_node": 3, "from_port": 0, "to_node": 4, "to_port": 1 },
|
||||
{ "from_node": 4, "from_port": 0, "to_node": 5, "to_port": 0 },
|
||||
{ "from_node": 5, "from_port": 0, "to_node": 7, "to_port": 0 },
|
||||
{ "from_node": 6, "from_port": 0, "to_node": 7, "to_port": 1 },
|
||||
{ "from_node": 7, "from_port": 0, "to_node": 8, "to_port": 0 },
|
||||
{ "from_node": 8, "from_port": 0, "to_node": 9, "to_port": 0 },
|
||||
{ "from_node": 9, "from_port": 0, "to_node": 10, "to_port": 0 }
|
||||
]
|
||||
}
|
||||
Loading…
Reference in New Issue