A chord progression generator that plays its result as MIDI and hands it to you as a MIDI clip. Pick a starting chord and a length, press Generate, and Chord Seq writes a progression, voices it smoothly and plays it in time with your session.
The idea
Chord Seq uses a small AI language model from the open-source ChordSeqAI project. Instead of words, it has learned which chords tend to follow which, and it writes a progression one chord at a time. You steer how adventurous it is, and a seed makes every result repeatable: the same settings and seed always give the same progression.
The chords are then voiced in close position around the octave you choose, each one placed near the chord before it, so the progression moves smoothly instead of jumping between root-position blocks. Each chord in the list is labelled with its harmonic role (tonic, predominant, dominant or chromatic) and a tension bar.
If the model is still loading or cannot run, Chord Seq says so and plays a simple I-vi-IV-V progression instead, so there is always something to hear.
