DIY CSQ-100/SH-101-style Arduino sequencer triggering a Korg MS20, part 3

Testing newly added ridiculous vacuum fluorescent display and keypad, fiddling around with adding rests and slide, doubling the length of the current pattern, shortening the pattern length, transposing, saving, loading another pattern, etc. See my incredible silly dancing disembodied hands, etc. Sequencer is based on an Arduino Mega, using an MCP4922 DAC for note and aux filter CV. Demo code for getting the MCP4922 to work with a standard Arduino over SPI: https://gist.github.com/equaliser/5194456