My brother was a fanatic about taping something 'while it was in the works'and playing it back while we were in the learning process. So I have 20 or so cassette tapes of songs mixed with instructions, chat, and laughter. I always planned - and still will someday- to transfer all the songs to a few songs-only tapes.

But now that he has died, the 'working' tapes are the real keepers.