I was actually curious about that. It should be a series of type 0 tracks, so would that technically still be a single track?
The spec says:
A Format 1 or 2 file has a header chunk followed by one or more track chunks. Programs
which support several simultaneous tracks should be able to save and read data in format 1, a
vertically one-dimensional form, that is, as a collection of tracks. Programs which support
several independent patterns should be able to save and read data in format 2, a horizontally
I'm not quite sure how to interpret "horizontally one-dimensional" vs "vertically one-dimensional".
If I understand it correctly, a type 2 MIDI file would play like an album if played in a normal player, one segment after another, with or without a clear delineation for when each "part" starts and ends, as opposed to a type 1, where all tracks "start" at the same time, and timing in to the song is controlled by delta time.
If this is the case, you potentially would not know just by listening that it was a type 2.
So sort of like loop points, except nothing loops, and each loop section is its own track?