Represents a Midi channel, Midi channels can range from 0 to 15, but are represented as 1 based values Channel 1 to 16
A Midi controller number
Represents a midi note number where 0 corresponds to C-2 and 127 corresponds to G8, C4 is 72
A Midi program number, these usually correspond to presets on Midi devices
An enum with variants for all possible Midi messages.