I love that image! I wonder if you can actually headbang that slowly though. Have just tried - it's v difficult. Would have to speed Greensleeves up.
DH teaches electric and acoustic, so annoying tune of the week varies accordingly. The last few weeks his students have been mostly murdering seventies rock riffs (Whole Lotta Love, Sunshine of Your Love etc). Feels like I'm living in Timewarp Towers.