TA-12 / RIFF GEN

Riff Generator

Generate riffs with the same workflow as the Bassline Generator: choose musical constraints, create seeded variations, edit every note directly in the piano roll, audition the result and export MIDI.

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TA-12 / RIFF GEN

Riff Generator

A motif-driven riff machine for synths, guitars, leads and anything that accepts MIDI.

MOTIF

Quick start

1) Choose a style preset. 2) Click Generate Riff. 3) Edit notes directly in the piano roll: drag vertically for pitch and drag the right edge for length. 4) Use Play or Export MIDI. Repeated Generate Riff clicks create new seeds automatically.

KEY SCALE

TEMPO / MIDI BPM

Embedded in exported MIDI

BARS GRID BASE OCTAVE

OCTAVE RANGE DENSITY SYNCOPATION MOTIF REPETITION ROOT PEDAL BIAS INTERVAL WIDTH

CONTOUR OCTAVE JUMPS NOTE LENGTH VELOCITY VARIATION MOTIF MUTATION CHROMATIC SPICE

SEED

PIANO ROLL—

DIRECT NOTE EDITDrag note = pitch · drag right edge = duration · click note = select

SELECTED NOTE — Click a note in the piano roll to edit it.

PITCH LENGTH START STEP

NOTES0

PITCH SPAN—

ROOT SHARE—

AVG VELOCITY—

GENERATED RIFF

—

What makes the riff generator musical

ToneAnvil creates a compact motif first, then reuses and mutates it instead of drawing every event independently. Interval Width controls how far the melody tends to leap, Root Pedal Bias pulls phrases back toward the tonic, and Motif Mutation decides how aggressively later repetitions diverge from the original idea.

MIDI export and editing

The exported Standard MIDI File contains tempo and the edited riff at 960 PPQ. Every pitch, start position, note length and velocity shown in the piano roll is written into the MIDI file, so you can continue arranging it in any DAW.