How to Play Piano Chord: A half-diminished 13 — root

This page is interactive. Connect your MIDI device.

Am13♭5

root position

A half-diminished 13

root position

A, C, D♯, G, B, D, F♯

The notes of the A major scale are:

Major scale pattern

The semitone pattern for a major scale is:

WWHWWWH

where:

1, ♭3, ♭5, ♭7, 9, 11, 13

G major A · G

G–B–D = ♭7, 9, 11 · left hand: root + ♭7

a major triad a whole step down from the root
B major A · G

B–D♯–F♯ = 9, ♭5, 13 · left hand: root + ♭7

a major triad a whole step up from the root

The keyboard can of every chord — change it any time in Preferences.