OK, back to the 60's: This Sonny Bono/Jack Nitzsche collaboration was 1st recorded by Jackie DeShannon in '63 (#1 UK, #84 US). The Searchers' '64 version (#13 US, #1 UK) features 2 6-string guitars played in unison with the echo switch accidentally left on, sounding like a 12-string! The squeak heard throughout the song is from a faulty bass-drum pedal. Very respectable cover by Los Challengers in P.R. in '69.
Yesterday's answer: Opus 17 (Don't You Worry 'Bout Me). I don't know about any other guitar players out there but I HATE key changes! I think those mean old piano players do it just to irritate us! http://www.youtube.com/watch?v=oc34p-71xts