When I was about 16 I borrowed an electric guitar from a friend, with the usual teenage ambitions of becoming a rock star in the ensuing weeks. Obviously, this still hasn’t happened…
I already knew a couple of chords, so once I’d worked out how to tune it the next thing I did with it was to try to learn the widdly-widdly bit at the end of Sultans of Swing. Literally the next thing. I didn’t know what chords to play in the rest of the song, I didn’t know what key it was in, I just went straight into trying to learn the most difficult part of the tune.