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Fig. 1 · A on the keyboard

piano chord

A

A1C♯3E5

A major third and a perfect fifth over the root.

on guitaron ukulelethe scale

What is true of it

A is A, C♯ and E — 1, 3 and 5 counted from A.

On an instrument that cannot reach all 3, the 5 goes first, in that order.

A in other shapes

AmminorAdimdiminishedAaugaugmentedA5power chordAsus2suspended secondAsus4suspended fourth

CC♯D♭DD♯E♭EFall 374