The circle of fifths is a deceptively simple diagram that lays out every musical note, key, three-note chord and scale, and charts the relationship between them. A bit like a musical version of the ...

Only the order of tones and semitones is different. Both keys have the same key signature, shown here:. Because they share the same key signature and the same notes, it is common to modulate or change ...

Switching a song into a different key can entirely change the way that song feels. So what does this chart, which shows which musical keys are most commonly used, tell us about the way we actually ...