yes, all tracks are combined to one. But other than that, what's the limitation? And what about mrpeach/midifile? And why do you look for something other than the two of them, what do you need?
that is already a very big limitation, as the original file has 9 tracks (for now, maybe more afterwards).
As I wrote, I need to read a midifile, so that I can "convert" the score to Pd (using data structures).
Best,
Joao