Trnsfrmr

So I’m working on YAMP (yet another midi project and it took me a while to recollect all the binary arithmetic required to parse MIDI packets.
Take a midi packet with 3 bytes in hexadecimal notation such as 98 3C 64. This stream encapsulates the following instructions:
Play middle C on channel 10 at velocity [...]

So I finally started on Octopussy. I’ve always found CoreMidi and procedural APIs in general a bit puzzling so I thought I would start with the simplest of tasks to help me demystify it all. My goal was simply to send a MIDI note on message from the Mac to the blofeld.
After perusing MIDIService.h, I [...]