Here's some useful Ableton midi racks for Loopmasters, one for chord progressions & one just for chords.
This Live Pack utilizes 2 different Chord Racks the first being the Progressions Rack which features pre-mapped complimentary chords which can be performed by playing keys ranging from C2 - G2 on your keyboard. The first Macro control allows you to scroll through different chord sets. The Second Rack is the Single Chord Rack where one chord is mapped fully across the key range simulating the classic Roland Juno, Chord Memory function used so much in early House music. Again the First Macro will scroll through different chord options.
buy the full rack at loopmasters - http://www.loopmasters.com/genres/50-De ... azz-Chords