The band I've been rehearsing with has decided we need to this act out on stage quick. So, we all brought tapes in to decide the songlist, and each member is to bring tapes for everyone else of the songs we each brought. I'm using the sarge's boom box to do some hi-speed dub copies, and I decide to start learning the songs while doing the dubbing! So, I'm actually learning the songs by playing double time, and it's actually working. You can get a better view of the song structure, believe it or not. And here most people prefer to slow the song down to pick out each note. My wife says I'm not right.