Little trick if you have a boring bit or need a bit of pep on an intrumental ... take the sequence (your instrumental solo or suchlike) slow it down and then overlap it onto the real-time footage. It only works if there's lots of camera movement or you have to alter the composition, digitally zoom or horizontal flip for example. It can give the impression (albeit briefly) of a two-camera shoot.

I really liked the Digital Effects you've built in so far. All in all you've created an excellent result for a single-camera shoot.