mcp_opendaw_create_disco_arrangement
Create a complete disco arrangement with four-on-floor drums, octave bass, sustained strings, and wah guitar across four tracks, using the classic I-vi-IV-V progression.
Instructions
Create a full disco arrangement — four-on-floor + octave bass + string sustains + wah guitar across 4 tracks.
Classic 70s disco with the signature groove — fundamentally different from house (its descendant):
Track 0: Drums — four-on-floor with 16th OPEN hats (not closed 8ths like house). Kick on every quarter, clap on 2 & 4. The 16th-note open hi-hat pattern is the disco signature — busier and more open than house's closed 8th hats. The groove that launched dance music.
Track 1: Bass — SYNCOPATED OCTAVE bass: the "good times" bass line. Root on beat 1, then syncopated octave jumps on the "and" of beats 2 and 4. Not off-beat 8ths like house, not arpeggiated like synthwave — it's a melodic bass line with octave leaps. The bass IS the hook in disco.
Track 2: Strings — sustained chord pads with octave doubling. Full bar sustain, lush and smooth. The orchestral element that separates disco from house — house uses stabs, disco uses sustained strings. Minor or major triad depending on chord.
Track 3: Guitar — wah-wah chops: 16th-note rhythmic scratching with accent pattern. Root + minor seventh voicing (funk-influenced). The "chukka-chukka" that drives the groove. Different from reggae skank (off-beat only) — disco guitar plays ALL 16ths with accents.
Uses I-vi-IV-V progression (G-Em-C-D in G major) — the classic disco four-chord loop. Different from house (minor vamp), pop (I-V-vi-IV), rock (I-IV-V). Disco's progression is major-key and optimistic — the "feel good" sound of the 70s.
At 120 BPM (default), this creates the classic disco groove — the tempo that defined the genre. The syncopated octave bass and 16th open hats are the fundamental differences from all 13 other arrangements: house has off-beat bass stabs with closed 8th hats, disco has melodic octave bass with 16th open hats.
bpm: Tempo (110-130, default 120 = classic disco). bars: Arrangement length (4-16, default 8). Must be multiple of 4. root: Root note (G is a classic disco key — G major). octave: MIDI octave for bass (2 = G2=43, standard disco bass register). unit_index: AU index with note tracks. drum_track / bass_track / string_track / guitar_track: Track indices.
Returns notes created per track and total.
Example: create_disco_arrangement(bpm=120, root="G", bars=8) create_disco_arrangement(bpm=115, root="C", bars=16)
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| bpm | No | ||
| bars | No | ||
| root | No | G | |
| octave | No | ||
| velocity | No | ||
| bass_track | No | ||
| drum_track | No | ||
| start_beat | No | ||
| unit_index | No | ||
| guitar_track | No | ||
| string_track | No |
Output Schema
| Name | Required | Description | Default |
|---|---|---|---|
| result | Yes |