Chord Progression Modulator

Purpose

A per-sequencer, per-bar diatonic transposition pattern layered on the global chord progression: for each of the 16 bars, choose whether to modulate (and how often) and by how many scale degrees. Lets different sequencers ride different movement over the same progression.

Interaction

16 columns (LHS = bars 0–7, RHS = bars 8–15) × 8 rows in two bands:

Bottom row (row 1): the toggle row, which cycles that bar’s modulation status OFF → ON → PERC_CHANCE → MOD1 → MOD2 → OFF.
Rows 2–8: the value grid, holding the scale-degree offset, from −3 on row 2 through 0 on row 5 to +3 on row 8. This band draws a bar growing out from the centre, not a single lit cell: row 5 always carries a mustard centre marker, and the offset fills downward in red for a negative value or upward in green for a positive one.

Edits take effect at the next bar boundary.

Shortcuts

Gesture	Where	Action	Modifiers
Press (toggle row, row 1)	LP grid	Cycle that bar’s status: OFF → ON → chance → MOD1 → MOD2 → OFF	none
Press (value rows 2–8)	LP grid	Set that bar’s scale-degree offset to the pressed row’s value (row 5 = 0)	none
SHIFT + MUTE + press row 1	LP LHS col 9	Reset: all 16 bars’ status → ON	shift+mute
SHIFT + MUTE + press value row	LP grid	Reset: that single bar’s offset → 0	shift+mute
SHIFT + MUTE + press value row	LP LHS col 9	Reset: all 16 bars’ offsets → 0	shift+mute
SHIFT + SOLO + press row 1	LP LHS col 9	Randomise: each bar’s status → random OFF or ON	shift+solo
SHIFT + SOLO + press value row	LP grid	Randomise: that single bar’s offset → random pick from {−3, −2, −1, 0, +1, +2, +3}	shift+solo
SHIFT + SOLO + press value row	LP LHS col 9	Randomise: all 16 bars’ offsets → random picks	shift+solo

Row 1 in columns 1–8 is intentionally not affected by reset/randomise: only the col-9 whole-array gesture on row 1 touches cpmstatus. RHS col 9 is view selection only and is always blocked.

Chord Progression Modulator

Purpose

Interaction

Shortcuts

See also