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Chord

C♯m9 chord

C♯m9 is a minor ninth chord with the notes C♯, E, G♯, B, D♯. The same chord spelled from D♭ is D♭m9.

C♯1
E♭3
G♯5
B♭7
D♯9

Intervals

NoteIntervalSemitones
C♯root0
Eminor 3rd3
G♯perfect 5th7
Bminor 7th10
D♯major 9th14

Inversions

Root positionC♯ – E – G♯ – B – D♯
1st inversionE – G♯ – B – D♯ – C♯ (C♯m9/E)
2nd inversionG♯ – B – D♯ – C♯ – E (C♯m9/G♯)
3rd inversionB – D♯ – C♯ – E – G♯ (C♯m9/B)
4th inversionD♯ – C♯ – E – G♯ – B (C♯m9/D♯)

Keys that contain C♯m9

Not diatonic to any major or natural minor key.

Related chords

How to build a minor ninth chord

A minor ninth chord is a minor seventh chord with a major 9th added. It is a rich, smooth chord common in jazz, soul and R&B.

Look up any other chord with the Scale & Chord Finder.