Dear Prudence

I notice that it was 50 years ago yesterday that the Beatles White Album was released, so here is one of my favourite tracks from it:

Unsquare Loser

18 down in today's Independent Crossword is "Jazz pianist's difficulty interrupting rock guitarist (7)"

If you need a little musical inspiration for the clue, these two fine songs might provide it:

Deerhoof!

I'm going to see Deerhoof in London next week.  If you're as excited about it as me, you might want to check out the video below