11 KiB
11 KiB
ARC 4: FX Chains & Automation Pro - Implementation Report
Date: 2026-04-07
Status: ✅ COMPLETED
Tasks: T061-T080
Summary
ARC 4 has been fully implemented with 20 new FX automation features for AbletonMCP-AI. The system provides comprehensive DJ-style effects chains, device racks, and parameter automation capabilities.
Files Created/Modified
New Files Created:
-
fx_automation.py(1,092 lines)- Core FX Automation Engine
- 20 effect creation functions (T061-T080)
- Device rack configurations
- Automation curve generators
- Integration test suite
-
test_fx_automation.py(715 lines)- 59 comprehensive unit tests
- Full coverage of T061-T080
- Edge case validation
- Integration verification
Modified Files:
server.py(Added 20 new MCP tools)- Import for FX Automation Engine
- 20
@mcp.tool()decorators - Full MCP integration
T061-T080 Feature Details
| Task | Feature | Status | Devices |
|---|---|---|---|
| T061 | Core DJ Rack Setup | ✅ | Auto Filter, Hybrid Reverb, Echo, Beat Repeat |
| T062 | BeatMasher Automation | ✅ | Beat Repeat patterns (1/4, 1/8) |
| T063 | Tape Stop | ✅ | Utility (pitch envelope) |
| T064 | Gater/Trance Gate | ✅ | Utility Gain automation |
| T065 | Flanger Sweeps | ✅ | Flanger LFO automation |
| T066 | Send/Return Strategy | ✅ | 2-4 return tracks with verb/delay/chorus |
| T067 | Master Bus Filter | ✅ | Auto Filter global sweeps |
| T068 | Ping-Pong Throws | ✅ | Echo send automation |
| T069 | Redux Build | ✅ | Redux bit depth automation |
| T070 | Resonance Riding | ✅ | Filter resonance curves |
| T071 | Vinyl Distortion | ✅ | VinylDistortion crackle |
| T072 | Chorus Widening | ✅ | Chorus + Utility width |
| T073 | Sub-Bass Synth | ✅ | MIDI patterns + Saturator/Compressor |
| T074 | Transient Shaping | ✅ | MultibandDynamics |
| T075 | Freeze FX | ✅ | Hybrid Reverb/Echo freeze |
| T076 | Vocoder Integration | ✅ | Vocoder with synth carrier |
| T077 | Phaser Hi-Hats | ✅ | Phaser frequency sweeps |
| T078 | Saturation Drive | ✅ | Saturator on bus/master |
| T079 | Auto-Pan Rhythms | ✅ | AutoPan triplets |
| T080 | Integration Test | ✅ | FX-heavy medley |
MCP Tools Added
# T061-T080: FX Chains & Automation Pro
- create_dj_rack # T061
- create_beatmasher_pattern # T062
- create_tape_stop # T063
- create_gater_effect # T064
- create_flanger_sweep # T065
- setup_send_return_chain # T066
- create_master_filter_sweep # T067
- create_pingpong_throws # T068
- create_redux_build # T069
- create_resonance_riding # T070
- create_vinyl_overlay # T071
- create_chorus_widening # T072
- create_sub_bass_injection # T073
- create_transient_shaper # T074
- create_freeze_effect # T075
- setup_vocoder # T076
- create_phaser_hihats # T077
- create_saturation_drive # T078
- create_autopan_rhythm # T079
- get_fx_automation_summary # T080
Key Classes and Functions
FXAutomationEngine
Main engine class providing:
class FXAutomationEngine:
# DJ Rack Creation
create_dj_rack_config(rack_type="standard")
# Effect Automation
create_beatmasher_automation(track, clip, pattern, intensity)
create_tape_stop_automation(track, time, duration, pitch)
create_gater_effect(track, pattern, rate, depth)
create_flanger_sweep(track, start, duration, rate)
# Send/Return Management
create_dj_send_strategy(num_returns=4)
create_pingpong_throws(track, positions, feedback, dotted)
# Master/Bus Processing
create_master_filter_sweep(start, duration, sweep_type)
create_saturation_drive(track, drive_db, target)
create_chorus_widening(track, target, width)
# Creative Effects
create_vinyl_overlay(track, intensity, crackle_only)
create_redux_build(track, start, end, bits_start, bits_end)
create_resonance_automation(track, sections, curve)
create_freeze_effect(track, bar, duration, source)
create_phaser_hihats(track, bars, duration, stages)
create_autopan_rhythm(track, rhythm)
# Advanced Processing
create_sub_bass_synth(track, key, pattern, triggers)
create_transient_shaper(track, focus, attack, sustain)
create_vocoder_setup(vocal_track, synth_track, bands)
# Testing
create_fx_medley_test(bpm, key)
get_all_fx_configs()
Test Results
Ran 59 tests in 0.003s
OK
Test Coverage:
- T061: 3 tests (DJ Rack creation, macros)
- T062: 3 tests (BeatMasher patterns)
- T063: 2 tests (Tape stop curve)
- T064: 3 tests (Gater depth/patterns)
- T065: 2 tests (Flanger LFO rates)
- T066: 3 tests (Send/return config)
- T067: 3 tests (Filter sweeps)
- T068: 3 tests (Ping-pong throws)
- T069: 3 tests (Redux build)
- T070: 2 tests (Resonance riding)
- T071: 3 tests (Vinyl overlay)
- T072: 2 tests (Chorus widening)
- T073: 3 tests (Sub-bass)
- T074: 2 tests (Transient shaping)
- T075: 2 tests (Freeze FX)
- T076: 2 tests (Vocoder setup)
- T077: 3 tests (Phaser sweeps)
- T078: 3 tests (Saturation)
- T079: 3 tests (Auto-pan)
- T080: 5 tests (Integration)
- Edge Cases: 3 tests
Example Usage
from fx_automation import get_fx_engine
# Get engine
engine = get_fx_engine(seed=42)
# Create DJ rack config
rack = engine.create_dj_rack_config('extended')
print(f"Created rack with {len(rack.devices)} devices")
# Create beatmasher automation
bm = engine.create_beatmasher_automation(0, 0, 'build', 0.8)
# Create tape stop effect
ts = engine.create_tape_stop_automation(0, 64, 4, -12)
# Create FX medley for testing
medley = engine.create_fx_medley_test(128, 'Am')
Architecture
┌─────────────────────────────────────────────────────────────┐
│ FX Chains & Automation Pro │
│ (T061-T080) │
├─────────────────────────────────────────────────────────────┤
│ FXAutomationEngine │
│ ├── create_dj_rack_config() # T061 │
│ ├── create_beatmasher_automation() # T062 │
│ ├── create_tape_stop_automation() # T063 │
│ ├── create_gater_effect() # T064 │
│ ├── create_flanger_sweep() # T065 │
│ ├── create_dj_send_strategy() # T066 │
│ ├── create_master_filter_sweep() # T067 │
│ ├── create_pingpong_throws() # T068 │
│ ├── create_redux_build() # T069 │
│ ├── create_resonance_automation() # T070 │
│ ├── create_vinyl_overlay() # T071 │
│ ├── create_chorus_widening() # T072 │
│ ├── create_sub_bass_synth() # T073 │
│ ├── create_transient_shaper() # T074 │
│ ├── create_freeze_effect() # T075 │
│ ├── create_vocoder_setup() # T076 │
│ ├── create_phaser_hihats() # T077 │
│ ├── create_saturation_drive() # T078 │
│ ├── create_autopan_rhythm() # T079 │
│ └── create_fx_medley_test() # T080 │
├─────────────────────────────────────────────────────────────┤
│ MCP Tools (server.py) │
│ ├── create_dj_rack() │
│ ├── create_beatmasher_pattern() │
│ ├── create_tape_stop() │
│ ├── create_gater_effect() │
│ ├── create_flanger_sweep() │
│ ├── setup_send_return_chain() │
│ ├── create_master_filter_sweep() │
│ ├── create_pingpong_throws() │
│ ├── create_redux_build() │
│ ├── create_resonance_riding() │
│ ├── create_vinyl_overlay() │
│ ├── create_chorus_widening() │
│ ├── create_sub_bass_injection() │
│ ├── create_transient_shaper() │
│ ├── create_freeze_effect() │
│ ├── setup_vocoder() │
│ ├── create_phaser_hihats() │
│ ├── create_saturation_drive() │
│ ├── create_autopan_rhythm() │
│ └── get_fx_automation_summary() │
└─────────────────────────────────────────────────────────────┘
Integration Points
With Ableton Live (via Runtime):
- Device loading via
load_device() - Parameter automation via
set_device_parameter() - Track effects via track devices chain
With MCP Server:
- 20 new tool endpoints
- JSON responses for all effects
- Error handling with
_log_error()
With Song Generator:
- FX chains can be applied during generation
- Section-based automation
- Return track setup for new projects
Validation
- ✅ All 59 unit tests passing
- ✅ Module compiles without errors
- ✅ Server.py compiles with new imports
- ✅ MCP tools properly decorated
- ✅ No circular dependencies
- ✅ Clean separation of concerns
Next Steps / Future Enhancements
- T081-T100: Advanced FX modulation and LFO automation
- Live Integration: Direct device creation via Ableton API
- GUI Elements: Visual automation curve editors
- Presets: Save/load custom FX chains
Conclusion
ARC 4: FX Chains & Automation Pro has been successfully implemented with all 20 tasks (T061-T080) completed. The system provides comprehensive DJ-style effect processing capabilities, ready for integration into the AbletonMCP-AI workflow.
Files:
AbletonMCP_AI/AbletonMCP_AI/MCP_Server/fx_automation.py(New)AbletonMCP_AI/AbletonMCP_AI/MCP_Server/tests/test_fx_automation.py(New)AbletonMCP_AI/AbletonMCP_AI/MCP_Server/server.py(Modified)
Total Lines Added: ~1,900 lines Test Coverage: 59 tests, 100% pass rate MCP Tools Added: 20