My 1st time messing with MIDI file, I used FL Studio to merge 3 main channels into 1. It plays fine in FL Studio but the once opened in MidiEditor the tempo slows down, not sure why, I have to do Ctrl+A 'Timing->scale selected event' to 0.9 and then repeat again with 1.1 to get it where it should be, any ideas?
Other than that it sounds awesome, especially toward the end there are fat arcs (1m 20sec):