mcp_opendaw_extract_motifs
Extract repeating melodic motifs from MIDI regions by interval contour. Identify short melodic phrases for structure analysis, pattern variation, and arrangement building.
Instructions
Extract repeating melodic motifs from a MIDI region.
A motif is a short melodic phrase (3-8 notes) identified by its interval contour — the pattern of pitch changes between consecutive notes. The same motif transposed to a different key still matches, because the relative intervals are identical.
Essential for: understanding melodic structure of existing pieces, finding repetitive patterns for variation, identifying verse/chorus motifs, and building call-and-response arrangements from existing material.
unit_index: AU index (-1 = all AUs). track_index: Note track index (-1 = all note tracks). region_index: Region index (-1 = all regions on track). min_motif_length: Minimum notes in a motif (default 3). max_motif_length: Maximum notes in a motif (default 8). min_repetitions: Minimum times a motif must appear to be reported (default 2). max_results: Maximum motifs to return, sorted by significance (default 20).
Returns list of motifs with contour, rhythm pattern, contour type, and occurrence positions.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| unit_index | No | ||
| max_results | No | ||
| track_index | No | ||
| region_index | No | ||
| min_repetitions | No | ||
| max_motif_length | No | ||
| min_motif_length | No |
Output Schema
| Name | Required | Description | Default |
|---|---|---|---|
| result | Yes |