So now I have this midi file that plays twice as fast as I want when I plop it into Ableton. Changing Ableton's tempo isn't an option; I've already automated numerous very specific tempo changes, rallentandos, etc. And I can't change the Sibelius project's tempo, either, without THAT whole project going haywire.
SO. Is there any way I can easily just double the length of all the notes in my .mid file?
Thx