G major is the key most guitarists end up in without ever choosing it. The open shapes sit under the hand, the chords ring against the open strings, and an enormous amount of rock, folk and country...

Odd time is less mysterious than it sounds. A bar of 5/4 is a bar of 4/4 with one extra beat. A bar of 7/8 is a bar of 8/8 with one taken away. Everything else about playing it is the same as playing...

Drop A is the point where a guitar stops sounding like a guitar and starts sounding like a different instrument. It is a long way down, and getting there with the strings you have on now will not...

C major is the key with no sharps and no flats, which makes it the first key most people meet on paper and one of the last they get comfortable with on a guitar. Nothing in it falls under the fingers...

D major is the key the guitar was arguably built for. The open D, A and G shapes sit under the hand, the bottom two strings ring underneath almost anything you play, and a huge amount of folk,...

The nineties are where a lot of guitarists find their reason to start. The decade turned away from technique for its own sake and towards songs a person could actually play, which is lucky for anyone...