Developer Rick Burnett has released Xeno – Chord Explorer Version 1 – a free Max For Live + Ableton Live chord plugin.
Here’s what Burnett has to say about it:
I’ve spent a great deal of time looking through all the available chord plugins in VST, AU and M4L formats and just never really found what I was looking for. Most chord exploration programs either have non-generative fixed chord patterns per key (Cthulu) or chord generation that is based on the full 12 note scale and deals in semitones (Nordmann Chord Generator or Ableton Live MIDI chord plugin).
I wanted a chord generator that generated all chords in key with varying chord sizes very easily. I do not come from a keyboard/piano background and I don’t like getting lost in theory while I write music. This is the perfect tool to really get into exploring chords in all sorts of ways.
Even further, pairing it with Ableton Live’s arpeggiator and you REALLY have a lot of flexibility in what you can do. The best part, this plugin is free (provided you own Max For Live)!
You can download Xeno – Chord Explorer from the Erogenous Tones site.