Sun Jul 6 21:32:15 EDT 2014

Later arch

Should run on a 18F13K22 as well for per-voice operation maybe?  These
things are so cheap they pale in comparison with the rest of the
analog stuff.

Thought crossed my mind to use I2C to connect them for multiple voices
on a board, but why not just TTL MIDI?

[1] entry://20120731-172308