Bill,

A few questions.

Am i correct in assuming;
1) MIDI Out only? Or will the device sit anywhere in the MIDI Chain with a MIDI THRU connection for downstream devices?

2)Uou intend to just send CC,RPN,and NRPN message types or do you want to send any MIDI Message from the controller.

3)You intend to "batch up" a set of changes which can be recalled and sent with a few (or 1) key activations?


The reference below is a list by Roland of Control Change Messages.

http://www.rolandus.com/SUPPORT/D...S/MCCC.HTM

The next ref contains several midi micro devices based upon '51 variants which might help give you some ideas of scale and approach (no control change devices however)

http://www.maxmidi.com/

regards,
p