How to Play Piano Chord: C♯ half-diminished 13 — 3rd inv

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C♯m13♭5

3rd inversion

C♯ half-diminished 13

3rd inversion

B, D♯, F♯, A♯, C♯, E, G

The notes of the C♯ major scale are:

Major scale pattern

The semitone pattern for a major scale is:

WWHWWWH

where:

1, ♭3, ♭5, ♭7, 9, 11, 13

B major C♯ · B

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

a major triad a whole step down from the root
E♭ major C♯ · B

D♯–G–A♯ = 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.