I'm mildly surprised to see the classic FSF lend-a-book argument in there: "Would it be wrong for me to make a copy of some sheet music and give it to a close

I'm mildly surprised to see the classic FSF lend-a-book argument in there: "Would it be wrong for me to make a copy of some sheet music and give it to a close friend of mine for an audition? Of course not. In fact, it would be considered nasty of me to refuse. But to trade sheet music online is bad? "