What notes are in a C#m7b5 chord?

C#m7b5 is C#, E, G, B: the 1, ♭3, ♭5, ♭7 of C#.

How do you play C#m7b5 on guitar?

5th String Root Voicing: x 4 5 4 5 x; 6th String Root Voicing: 9 x 9 9 8 x (low E to high E, x = don't play the string).

What scale goes with C#m7b5?

Scales on C# that contain every note of C#m7b5: C# Blues, C# Locrian, C# Altered, C# Half-Whole Diminished, C# Locrian Natural 2, C# Locrian Natural 6.

Guitar chord · Half-Diminished (m7♭5)

C#m7b5 chord (C# Half-Diminished (m7♭5))

Essential bridge chord on the ii degree of minor ii-V-I jazz progressions.

Notes C#EGB

Formula 1 ♭3 ♭5 ♭7

Shapes 2 on this page

C#m7b5 chord shapes

Tap a diagram to strum it. Numbers are fingers: 1 index, 2 middle, 3 ring, 4 pinky. Blue dots are the root, C#.

5th String Root Voicing x 4 5 4 5 x

6th String Root Voicing 9 x 9 9 8 x

Interactive chord diagram

C#m7b5 on the fretboard

STR OP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 E A D G B E ✕ ✕ ✕ ✕

Tap any note to hear it.

Scales to play over C#m7b5

These scales start on C# and contain every note of the chord, so they fit when C#m7b5 is the chord of the moment.

C# Blues C# Locrian C# Altered C# Half-Whole Diminished C# Locrian Natural 2 C# Locrian Natural 6 C# Ukrainian Dorian C# Dorian b5 C# Lydian #2 #6 C# Hungarian Major

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Questions

What notes are in a C#m7b5 chord?: C#m7b5 is C#, E, G, B: the 1, ♭3, ♭5, ♭7 of C#.
How do you play C#m7b5 on guitar?: 5th String Root Voicing: x 4 5 4 5 x; 6th String Root Voicing: 9 x 9 9 8 x (low E to high E, x = don't play the string).
What scale goes with C#m7b5?: Scales on C# that contain every note of C#m7b5: C# Blues, C# Locrian, C# Altered, C# Half-Whole Diminished, C# Locrian Natural 2, C# Locrian Natural 6.

Half-Diminished (m7♭5) chords in every key

Cm7b5 C#m7b5 Dm7b5 Ebm7b5 Em7b5 Fm7b5 F#m7b5 Gm7b5 Abm7b5 Am7b5 Bbm7b5 Bm7b5