The singer from my old band and I have been writing songs like crazy for the past 3 or 4 months. To record, we're using his Mac laptop with Garageband software. The drums are kind of cool, but he says they're not editable because they're .wav files. So we're stuck with the canned beats that the software provides. Is there no way to create custom drum beats, change ups, and cymbals with this software? He says no, and he's probably right since it's his stuff, but I'm just curious if there's a way to do it and he just isn't aware. Thanks.