C#m7♭5 chord on 6-String Guitar – Open C

in Open C (C-G-C-G-C-E) tuning

Root

Type

Tuning

C#m7♭5

Half-Diminished

Notes:C# · E · G · B

mediumbarre on fret 1

Piano Left hand Right hand

Fingerings (16)

C#m7♭5 shapes as text

Frets	Fingers	Notes	Difficulty
1 4 1 0 4 0	1 2 1 – 3 –	C# B C# G E E	medium · barre on fret 1
x 6 x 4 4 3	– 4 – 2 3 1	x C# x B E G	hard
x 6 4 0 4 7	– 3 1 – 2 4	x C# E G E B	medium
x 6 x 9 7 7	– 1 – 4 2 3	x C# x E G B	hard
7 9 7 0 11 9	1 2 1 – 4 3	G E G G B C#	hard · barre on fret 7
11 0 11 9 11 9	2 – 3 1 4 1	B G B E B C#	medium · barre on fret 9
1 4 1 0 4 3	1 3 1 – 4 2	C# B C# G E G	medium · barre on fret 1
x 6 4 4 x 3	– 4 2 3 – 1	x C# E B x G	hard
x 6 4 0 7 7	– 2 1 – 3 4	x C# E G G B	medium
x 6 7 9 x 7	– 1 2 4 – 3	x C# G E x B	hard
11 0 7 9 7 9	4 – 1 2 1 3	B G G E G C#	hard · barre on fret 7
x 0 11 9 11 9	– – 2 1 3 1	x G B E B C#	medium · barre on fret 9
1 0 1 4 1 0	1 – 2 4 3 –	C# G C# B C# E	medium
x 4 x 6 4 3	– 2 – 4 3 1	x B x C# E G	hard
x 6 4 4 7 0	– 3 1 2 4 –	x C# E B G E	medium
x 9 x 6 7 7	– 4 – 1 2 3	x E x C# G B	hard

Max fret: 12

Fingerings shown: 16

The C#m7♭5 chord (Half-Diminished) is built from the notes C#, E, G, B. Below are playable fingerings for 6-String Guitar – Open C generated for your selected tuning, ordered from open-position shapes up the neck. Tap a diagram to hear it, or switch to the piano view to see the same harmony on keys.

How the C#m7♭5 chord is built

Formula: 1 · ♭3 · ♭5 · ♭7

Degree	Semitones	Note
1	0	C#
♭3	3	E
♭5	6	G
♭7	10	B

More C# chords

C#C#m C#7 C#°C#+C#9 C#maj7 C#m7 C#7♯5 C#7♭5 C#6 C#m6 C#°7 C#sus2 C#sus4 C#add9 C#maj9 C#m9 C#5

Other roots

Cm7♭5 Dm7♭5 D#m7♭5 Em7♭5 Fm7♭5 F#m7♭5 Gm7♭5 G#m7♭5 Am7♭5 A#m7♭5 Bm7♭5

See C#m7♭5 in another tuning

Standard E E-A-D-G-B-E Half Step Down (Eb) D#-G#-C#-F#-A#-D#Drop D D-A-D-G-B-E Open C C-G-C-G-C-E Open D D-A-D-F#-A-D Open G D-G-D-G-B-D DADGAD (D Modal) D-A-D-G-A-D

What notes make up the C#m7♭5 chord?

C#m7♭5 is a Half-Diminished chord built from the notes C#, E, G, B.

How do I read the diagram?

Strings run left to right from the lowest to the first string; the numbers show which finger presses each fret. An ○ marks an open string, an ✕ marks a muted one.