mcp_opendaw_create_tuplet_group
Create tuplet groups dividing a time span into N equal irrational subdivisions (3,5,7...), with control over scale, pitches, rests, accents, and repeats.
Instructions
Create a tuplet group — irrational rhythm subdivision within a time span.
A tuplet divides a time span into N equal parts instead of the normal subdivision. Triplets (3 in 2), quintuplets (5 in 4), septuplets (7 in 4) create rhythmic tension by violating the expected duple meter.
Unlike polyrhythm (multiple voices with different periods) or additive rhythm (unequal groupings), tuplets subdivide a single time span into an irrational number of equal parts — creating a "squeezed" or "stretched" feel within one voice.
Common tuplets: 3 in 2 — triplet (most common, jazz swing, Irish jigs) 5 in 4 — quintuplet (Chopin, Ligeti, modern jazz) 7 in 4 — septuplet (Ferneyhough, new complexity) 11 in 4 — undecuplet (extreme irrational meter) 2 in 3 — duplet (2 notes in triplet space, compound meter)
Args: root: Root note name (C, C#, D, ...). scale: Scale name (major, minor, dorian, etc.). tuplet_number: Number of notes to fit in the span (2-16). 3=triplet, 5=quintuplet, 7=septuplet, etc. span_beats: Time span in beats that the tuplet occupies (0.25-8.0). 1.0 = quarter note span, 2.0 = half note span. base_division: The normal subdivision the tuplet replaces (1-8). 2 = duplet (normal), so triplet = 3 in 2. 4 = sixteenths, so quintuplet = 5 in 4. repeats: Number of times the tuplet repeats (1-16). octave: Starting MIDI octave (1-6). pitch_mode: Pitch assignment mode (scale_asc, scale_desc, chord, repeated, alternating). rest_positions: Comma-separated tuplet positions that are rests (0-indexed). E.g., "2,4" = positions 2 and 4 are rests. velocity: Base velocity 0-1. accent_first: If True, first note of each tuplet gets accent. unit_index: AU index. track_index: Note track index. start_beat: Starting beat position.
Returns notes created, tuplet ratio, and timing info.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| root | No | C | |
| scale | No | major | |
| octave | No | ||
| repeats | No | ||
| velocity | No | ||
| pitch_mode | No | scale_asc | |
| span_beats | No | ||
| start_beat | No | ||
| unit_index | No | ||
| track_index | No | ||
| accent_first | No | ||
| base_division | No | ||
| tuplet_number | No | ||
| rest_positions | No |
Output Schema
| Name | Required | Description | Default |
|---|---|---|---|
| result | Yes |