Let's keep track of some implementation notes for a reengineered MIDI core, improved and compatible with permissive licensing. (feel free to add ideas)

Feature

• 4-op channel dynamic switching and allocation
• allow introducing support for more channel types than FM
• support keying notes multiple times

Model

• try breaking down big structures as possible
• reduce the nesting level of structures
• make the header more lightweight

Implementation

• active notes are arrays[128] of linked-lists of note records
• suggestion of providing RT memory alloc substitution by pools. (for note records / linked list, remove complication of static allocating, maintain a free-list in just one place)

Unused things removal

• audio tick handler

[etc...]