I would love to see a Scales instrument plugin, like S1 has for Chords already, but filters the keyboard input to a selected scale in real-time. An example of this is the Scales plugin in Ableton Live. I realize you can lock to scales when editing the midi notes after recording, but it would help to do this during the recording for us that are not keyboard players. Also, more scales and chords for the chord plugin (or better yet, allow us to create our own scales that will filter in real time performance).
Thanks!