REAPER MCP Server

"""Test MIDI generation capabilities""" import pytest import pytest_asyncio from .test_utils import ensure_clean_project @pytest.mark.asyncio async def test_midi_scale_generation(reaper_mcp_client): """Test generating MIDI scales""" # Ensure clean project await ensure_clean_project(reaper_mcp_client) # Create a track await reaper_mcp_client.call_tool( "insert_track", {"index": 0} ) # Create MIDI item result = await reaper_mcp_client.call_tool( "create_midi_item", { "track_index": 0, "position": 0.0, "length": 8.0, "quantize": False } ) assert "Created MIDI item" in result.content[0].text # Extract item index import re match = re.search(r'index (\d+)', result.content[0].text) item_index = int(match.group(1)) if match else 0 # Generate C major scale result = await reaper_mcp_client.call_tool( "generate_midi_scale", { "item_index": item_index, "take_index": 0, "root_note": 60, # Middle C "scale_type": "major", "octaves": 2, "note_length": 0.25 } ) assert "Generated major scale" in result.content[0].text assert "notes starting from C4" in result.content[0].text @pytest.mark.asyncio async def test_midi_chord_progression(reaper_mcp_client): """Test generating chord progressions""" # Ensure clean project await ensure_clean_project(reaper_mcp_client) # Create a track await reaper_mcp_client.call_tool( "insert_track", {"index": 0} ) # Add a small delay to ensure track is created import asyncio await asyncio.sleep(0.1) # Create MIDI item result = await reaper_mcp_client.call_tool( "create_midi_item", { "track_index": 0, "position": 0.0, "length": 8.0, "quantize": False } ) assert "Created MIDI item" in result.content[0].text # Extract item index import re match = re.search(r'index (\d+)', result.content[0].text) item_index = int(match.group(1)) if match else 0 # Generate chord progression result = await reaper_mcp_client.call_tool( "generate_midi_chord_sequence", { "item_index": item_index, "take_index": 0, "chord_progression": ["Cmaj", "Am", "Fmaj", "G7"], "duration": 1.0 } ) assert "Generated chord progression" in result.content[0].text assert "Cmaj → Am → Fmaj → G7" in result.content[0].text @pytest.mark.asyncio async def test_midi_drum_pattern(reaper_mcp_client): """Test generating drum patterns""" # Ensure clean project await ensure_clean_project(reaper_mcp_client) # Create a track track_result = await reaper_mcp_client.call_tool( "insert_track", {"index": 0} ) print(f"Track creation result: {track_result.content[0].text}") # Check track count count_result = await reaper_mcp_client.call_tool( "count_tracks", {} ) print(f"Track count: {count_result.content[0].text}") # Create MIDI item result = await reaper_mcp_client.call_tool( "create_midi_item", { "track_index": 0, "position": 0.0, "length": 16.0, "quantize": False } ) print(f"MIDI item creation result: {result.content[0].text}") assert "Created MIDI item" in result.content[0].text # Extract item index import re match = re.search(r'index (\d+)', result.content[0].text) item_index = int(match.group(1)) if match else 0 # Generate basic rock pattern result = await reaper_mcp_client.call_tool( "generate_midi_drum_pattern", { "item_index": item_index, "take_index": 0, "pattern": "basic_rock", "bars": 4 } ) assert "Generated basic_rock drum pattern" in result.content[0].text assert "notes over 4 bars" in result.content[0].text @pytest.mark.asyncio async def test_midi_transformation(reaper_mcp_client): """Test MIDI transformation operations""" # Ensure clean project await ensure_clean_project(reaper_mcp_client) # Create a track await reaper_mcp_client.call_tool( "insert_track", {"index": 0} ) # Add a small delay to ensure track is created import asyncio await asyncio.sleep(0.1) # Create MIDI item result = await reaper_mcp_client.call_tool( "create_midi_item", { "track_index": 0, "position": 0.0, "length": 4.0, "quantize": False } ) assert "Created MIDI item" in result.content[0].text # Extract item index import re match = re.search(r'index (\d+)', result.content[0].text) item_index = int(match.group(1)) if match else 0 # First generate some notes to transform await reaper_mcp_client.call_tool( "generate_midi_scale", { "item_index": item_index, "take_index": 0, "root_note": 60, "scale_type": "major", "octaves": 1, "note_length": 0.25 } ) # Test transposition result = await reaper_mcp_client.call_tool( "transpose_midi_notes", { "item_index": item_index, "take_index": 0, "semitones": 5, "selected_only": False } ) assert "Transposed" in result.content[0].text assert "5 semitones up" in result.content[0].text # Test quantization result = await reaper_mcp_client.call_tool( "quantize_midi_notes", { "item_index": item_index, "take_index": 0, "grid": "1/16", "strength": 0.8 } ) assert "Quantized" in result.content[0].text assert "1/16 grid" in result.content[0].text assert "80% strength" in result.content[0].text # Test humanization result = await reaper_mcp_client.call_tool( "humanize_midi_timing", { "item_index": item_index, "take_index": 0, "timing_amount": 0.02, "velocity_amount": 0.15 } ) assert "Humanized" in result.content[0].text assert "timing: ±20ms" in result.content[0].text assert "velocity: ±15%" in result.content[0].text @pytest.mark.asyncio async def test_midi_analysis(reaper_mcp_client): """Test MIDI analysis functions""" # Ensure clean project await ensure_clean_project(reaper_mcp_client) # Create a track await reaper_mcp_client.call_tool( "insert_track", {"index": 0} ) # Add a small delay to ensure track is created import asyncio await asyncio.sleep(0.1) # Create MIDI item result = await reaper_mcp_client.call_tool( "create_midi_item", { "track_index": 0, "position": 0.0, "length": 4.0, "quantize": False } ) assert "Created MIDI item" in result.content[0].text # Extract item index import re match = re.search(r'index (\d+)', result.content[0].text) item_index = int(match.group(1)) if match else 0 # Generate some content to analyze chord_result = await reaper_mcp_client.call_tool( "generate_midi_chord_sequence", { "item_index": item_index, "take_index": 0, "chord_progression": ["Cmaj", "Fmaj", "G7", "Cmaj"], "duration": 1.0 } ) assert "Generated chord progression" in chord_result.content[0].text # Add a small delay to ensure MIDI notes are written await asyncio.sleep(0.1) # Analyze pattern result = await reaper_mcp_client.call_tool( "analyze_midi_pattern", { "item_index": item_index, "take_index": 0 } ) assert "MIDI pattern analysis" in result.content[0].text assert "Notes analyzed:" in result.content[0].text # Detect chord progressions result = await reaper_mcp_client.call_tool( "detect_midi_chord_progressions", { "item_index": item_index, "take_index": 0 } ) # Check that we got chord names back (should contain "major" or chord symbols) result_text = result.content[0].text.lower() assert "major" in result_text or "minor" in result_text or "→" in result_text # Get note distribution result = await reaper_mcp_client.call_tool( "get_midi_note_distribution", { "item_index": item_index, "take_index": 0 } ) assert "MIDI note distribution" in result.content[0].text assert "total notes" in result.content[0].text # Detect key signature result = await reaper_mcp_client.call_tool( "detect_midi_key_signature", { "item_index": item_index, "take_index": 0 } ) assert "Detected key:" in result.content[0].text assert "confidence:" in result.content[0].text