by Arctic Monkeys
is most likely in the Key of E Major
Notes in E Major:
A, B, C#/Db, D#/Eb, E, F#/Gb, G#/Ab
Chords in E Major:
E, F#m, G#m, A, B, C#m, D#dim
This key can also be known as C#/Db minor.
When it's used as a minor key, the minor key note is stressed more than the major key note. The same notes and same chords still apply.