This walkthrough of Ableton Live's Expressive Chords device shows how to turn a single MIDI note into a full chord voicing, with quick transposition to match your key and a hot-swap browser for auditioning different chord presets on the fly.
Once a chord shape is chosen, Tilt, Invert, and Strum give you fast ways to reshape it. Tilt biases velocity toward the top or bottom notes of the chord, Invert cycles through voicing permutations, and Strum staggers note timing for a more played, human feel.
The Articulation editor goes deeper into that timing control, letting you drag individual sliders to set exactly when each note in the chord fires, then preview and save the result. Note order can be reversed or quantized, and the Modulation tab lets you assign mod sources to any parameter, including random variation for subtle movement across a progression.
Expressive Chords also accepts chord progressions imported directly from clips, so you're not limited to its built-in presets and can shape your own progressions with the same tilt, strum, and articulation tools.”