A Chord Progression Generator That Outputs Real MIDI

Most online chord progression generators give you a chart of chord names — you still have to voice them, program them, and figure out the rhythm yourself. MIDI Lab's chord progression generator skips that step: describe what you want ("sad lo-fi chords in A minor," "uplifting house progression in F," "trap minor 7ths") and you get back a real MIDI file with the chords already voiced and timed, ready to drop into a DAW, edit in the piano roll, or stream straight to a hardware synth.

How the Chord Progression Builder Works

There's no dropdown menu of pre-set progressions to pick from. You write a plain-language prompt describing the genre, key, and mood, and the AI builds a progression around it — voicing choices, inversions, and rhythm included, not just a list of chord symbols. Don't like the result? Regenerate with a tweaked prompt, or open it in the MIDI editor and change individual notes, octaves, or voicings by hand.

Prompt Ideas for the Chord Progression Maker

By mood: "melancholic chords for a rainy day," "triumphant, anthemic progression," "tense, unresolved chords for a horror scene"
By genre: "neo-soul chords with extended 9ths and 11ths," "punchy pop-punk power chords," "modal jazz progression in Dorian"
By key and function: "four-chord pop progression in G major," "minor key progression that resolves to the relative major"
By reference point: "chords like a 90s R&B ballad," "chords like a synthwave arpeggio bed"

From Chords to a Full Track

A generated chord progression is a starting point, not a dead end. Layer a melody over it, evolve it into new variations with the Infinite Engine, or talk through changes with the AI agent in the editor — "make the second chord minor," "add a passing chord between bars 2 and 3." Save progressions you like to My Presets so you can recall them for future sessions instead of re-describing them from scratch.

Try the Chord Progression Generator

Generate a chord progression with any genre, key, or mood — no music theory background needed to get something usable back. Pair it with MIDI chord progressions and melodies for more prompt ideas.