All that is is the guy didn't set the tempo before he recorded it. Sequencers default to 120 in the key of C but if he didn't use a click he could record it at any tempo and since he's doing it live, he can speed up or slow down all he wants. Most sequencers have something like "align to click". That should straighten out the tempo wandering if it's not too bad but you still have the problem of the master tempo setting being wrong and there's nothing you can do about that after the fact so that means you can't add any prerecorded tracks but you still could record something live yourself by playing along with it. The only possible way around this is to convert the midi file to audio and then open it up in the ACW. That will create a tempo map and also a template for a new midi file. The only thing there is it will only give you the basic road map of the song with the bass notes and some of the chords depending on how complex the piece is. Beyond that, you're rewriting the whole thing.

Bob

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