After posting my question in the previous email, I read MidiNotate's announcement that the forthcoming update of Composer, 2.6, now in beta testing, will include a new feature called Rebar -- which, from the announcement's description, appears to be designed to handle exactly the issue I covered in my post. I would be most interested to know whether Rebar will be able to fix the MIDI piano file that I posted to the forum. If it can, you might like to contact me to serve as a beta tester. If nothing else, I will be able to show whether someone with no previous experience using Composer can master the intricacies of re-aligning bars and beats with Rebar. MS