REAPER MCP Server

import pytest import pytest_asyncio import asyncio @pytest.mark.asyncio async def test_midi_ppq_time_conversion(reaper_mcp_client): """Test PPQ and time conversion methods""" # Create track and MIDI item await reaper_mcp_client.call_tool("insert_track", {"index": 0, "use_defaults": True}) await reaper_mcp_client.call_tool( "create_midi_item", {"track_index": 0, "position": 0.0, "length": 10.0} ) # Test time to PPQ conversion result = await reaper_mcp_client.call_tool( "midi_get_ppq_pos_from_proj_time", {"item_index": 0, "take_index": 0, "time": 2.0} ) print(f"Time to PPQ result: {result}") assert "Time 2.000s = PPQ" in result.content[0].text # Test PPQ to time conversion result = await reaper_mcp_client.call_tool( "midi_get_proj_time_from_ppq_pos", {"item_index": 0, "take_index": 0, "ppq_pos": 960.0} # 1 quarter note ) print(f"PPQ to time result: {result}") assert "PPQ 960.0 = Time" in result.content[0].text # Get start of measure result = await reaper_mcp_client.call_tool( "midi_get_ppq_pos_start_of_measure", {"item_index": 0, "take_index": 0, "ppq_pos": 1000.0} ) print(f"Start of measure result: {result}") assert "Start of measure" in result.content[0].text # Get end of measure result = await reaper_mcp_client.call_tool( "midi_get_ppq_pos_end_of_measure", {"item_index": 0, "take_index": 0, "ppq_pos": 1000.0} ) print(f"End of measure result: {result}") assert "End of measure" in result.content[0].text @pytest.mark.asyncio async def test_midi_grid_settings(reaper_mcp_client): """Test MIDI grid settings""" # Create track and MIDI item await reaper_mcp_client.call_tool("insert_track", {"index": 0, "use_defaults": True}) await reaper_mcp_client.call_tool( "create_midi_item", {"track_index": 0, "position": 0.0, "length": 10.0} ) # Get MIDI grid settings result = await reaper_mcp_client.call_tool( "midi_get_grid", {"item_index": 0, "take_index": 0} ) print(f"MIDI grid result: {result}") assert "MIDI grid:" in result.content[0].text @pytest.mark.asyncio async def test_midi_get_evt(reaper_mcp_client): """Test getting MIDI events by index""" # Create track and MIDI item await reaper_mcp_client.call_tool("insert_track", {"index": 0, "use_defaults": True}) await reaper_mcp_client.call_tool( "create_midi_item", {"track_index": 0, "position": 0.0, "length": 10.0} ) # Insert some MIDI events await reaper_mcp_client.call_tool( "midi_insert_evt", { "item_index": 0, "take_index": 0, "ppq_pos": 0.0, "event_type": "note_on", "data1": 60, "data2": 100, "channel": 0 } ) await reaper_mcp_client.call_tool( "midi_insert_evt", { "item_index": 0, "take_index": 0, "ppq_pos": 960.0, "event_type": "note_off", "data1": 60, "data2": 0, "channel": 0 } ) # Get event by index result = await reaper_mcp_client.call_tool( "midi_get_evt", {"item_index": 0, "take_index": 0, "event_index": 0} ) print(f"Get event 0 result: {result}") assert "Event 0:" in result.content[0].text or "Event 0 not found" in result.content[0].text # Try to get non-existent event result = await reaper_mcp_client.call_tool( "midi_get_evt", {"item_index": 0, "take_index": 0, "event_index": 999} ) print(f"Get event 999 result: {result}") assert "not found" in result.content[0].text or "Invalid" in result.content[0].text @pytest.mark.asyncio async def test_midi_enum_selected_notes(reaper_mcp_client): """Test enumerating selected MIDI notes""" # Create track and MIDI item await reaper_mcp_client.call_tool("insert_track", {"index": 0, "use_defaults": True}) await reaper_mcp_client.call_tool( "create_midi_item", {"track_index": 0, "position": 0.0, "length": 10.0} ) # Insert some notes with selection notes = [ {"pitch": 60, "selected": True}, {"pitch": 62, "selected": False}, {"pitch": 64, "selected": True}, {"pitch": 65, "selected": True} ] for i, note in enumerate(notes): await reaper_mcp_client.call_tool( "insert_midi_note", { "item_index": 0, "take_index": 0, "pitch": note["pitch"], "velocity": 100, "start_time": i * 0.5, "duration": 0.4, "channel": 0, "selected": note["selected"] } ) # Enumerate selected notes result = await reaper_mcp_client.call_tool( "midi_enum_sel_notes", {"item_index": 0, "take_index": 0} ) print(f"Enum selected notes result: {result}") assert "Selected notes" in result.content[0].text or "No notes selected" in result.content[0].text @pytest.mark.asyncio async def test_midi_set_item_extents(reaper_mcp_client): """Test setting MIDI item extents""" # Create track and MIDI item await reaper_mcp_client.call_tool("insert_track", {"index": 0, "use_defaults": True}) await reaper_mcp_client.call_tool( "create_midi_item", {"track_index": 0, "position": 0.0, "length": 4.0} ) # Set item extents in quarter notes result = await reaper_mcp_client.call_tool( "midi_set_item_extents", { "item_index": 0, "take_index": 0, "start_qn": 0.0, "end_qn": 16.0 # 4 bars at 4/4 } ) print(f"Set item extents result: {result}") assert "Set MIDI item extents" in result.content[0].text @pytest.mark.asyncio async def test_midi_event_operations_workflow(reaper_mcp_client): """Test a workflow using MIDI event operations""" # Create track and MIDI item await reaper_mcp_client.call_tool("insert_track", {"index": 0, "use_defaults": True}) result = await reaper_mcp_client.call_tool( "create_midi_item", {"track_index": 0, "position": 0.0, "length": 8.0} ) print(f"Create MIDI item: {result}") # Insert a series of notes notes = [60, 62, 64, 65, 67, 69, 71, 72] # C major scale for i, pitch in enumerate(notes): # Convert time to PPQ time = i * 0.5 result = await reaper_mcp_client.call_tool( "midi_get_ppq_pos_from_proj_time", {"item_index": 0, "take_index": 0, "time": time} ) # Extract PPQ value from result ppq_text = result.content[0].text try: ppq = float(ppq_text.split("PPQ ")[1].split(".")[0]) except: ppq = i * 960.0 # Default to 1 quarter note per half second # Insert note await reaper_mcp_client.call_tool( "insert_midi_note", { "item_index": 0, "take_index": 0, "pitch": pitch, "velocity": 90, "start_time": time, "duration": 0.4, "channel": 0, "selected": i % 2 == 0 # Select every other note } ) # Sort MIDI events await reaper_mcp_client.call_tool( "midi_sort", {"item_index": 0, "take_index": 0} ) # Enumerate selected notes result = await reaper_mcp_client.call_tool( "midi_enum_sel_notes", {"item_index": 0, "take_index": 0} ) print(f"Selected notes: {result}") assert "Selected notes" in result.content[0].text # Get grid settings result = await reaper_mcp_client.call_tool( "midi_get_grid", {"item_index": 0, "take_index": 0} ) print(f"Grid settings: {result}") # Get some measure boundaries for ppq in [0.0, 960.0, 1920.0]: result = await reaper_mcp_client.call_tool( "midi_get_ppq_pos_start_of_measure", {"item_index": 0, "take_index": 0, "ppq_pos": ppq + 100} ) print(f"Start of measure for PPQ {ppq + 100}: {result}") result = await reaper_mcp_client.call_tool( "midi_get_ppq_pos_end_of_measure", {"item_index": 0, "take_index": 0, "ppq_pos": ppq + 100} ) print(f"End of measure for PPQ {ppq + 100}: {result}") print("MIDI event operations workflow completed successfully!")