Co7 7-String Guitar Chord — Chart and Tabs in Drop B Tuning

Short answer: Co7 is a C Diminished 7 chord with the notes C, E♭, G♭, B♭♭. In Drop B tuning, there are 28 voicings. See the fingering diagrams below.

Also known as: C°7, C dim7

Looking for Co7 (Standard Tuning)?

Piano ChordsInstrumentsTunings

How to Play Co7 on 7-String Guitar

Co7, C°7, Cdim7

Notes: C, E♭, G♭, B♭♭

x,x,10,8,10,x,9 (xx314x2)
x,x,10,x,10,11,9 (xx2x341)
x,9,10,8,10,x,x (x2314xx)
x,9,10,x,10,11,x (x12x34x)
x,6,10,x,10,x,9 (x13x4x2)
x,9,10,x,10,x,6 (x23x4x1)
7,9,10,8,x,x,x (1342xxx)
10,9,7,8,x,x,x (4312xxx)
10,9,x,8,10,x,x (32x14xx)
10,9,x,x,10,11,x (21xx34x)
10,6,7,x,7,x,x (412x3xx)
7,6,10,x,7,x,x (214x3xx)
10,x,x,8,10,x,9 (3xx14x2)
10,x,x,x,10,11,9 (2xxx341)
10,9,7,x,x,11,x (321xx4x)
10,x,7,8,x,x,9 (4x12xx3)
7,x,10,8,x,x,9 (1x42xx3)
7,9,10,x,x,11,x (123xx4x)
7,6,10,x,x,x,9 (214xxx3)
10,6,7,x,x,x,9 (412xxx3)
10,6,x,x,10,x,9 (31xx4x2)
7,x,10,x,7,x,6 (2x4x3x1)
10,x,7,x,7,x,6 (4x2x3x1)
7,9,10,x,x,x,6 (234xxx1)
10,9,7,x,x,x,6 (432xxx1)
10,9,x,x,10,x,6 (32xx4x1)
10,x,7,x,x,11,9 (3x1xx42)
7,x,10,x,x,11,9 (1x3xx42)

Quick Summary

  • The Co7 chord contains the notes: C, E♭, G♭, B♭♭
  • In Drop B tuning, there are 28 voicings available
  • Also written as: C°7, C dim7
  • Each diagram shows finger positions on the 7-String Guitar fretboard

Frequently Asked Questions

What is the Co7 chord on 7-String Guitar?

Co7 is a C Diminished 7 chord. It contains the notes C, E♭, G♭, B♭♭. On 7-String Guitar in Drop B tuning, there are 28 ways to play this chord.

How do you play Co7 on 7-String Guitar?

To play Co7 on in Drop B tuning, use one of the 28 voicings shown above. Each diagram shows finger positions on the fretboard, with numbers indicating which fingers to use.

What notes are in the Co7 chord?

The Co7 chord contains the notes: C, E♭, G♭, B♭♭.

How many ways can you play Co7 on 7-String Guitar?

In Drop B tuning, there are 28 voicings for the Co7 chord. Each voicing uses a different position on the fretboard while playing the same notes: C, E♭, G♭, B♭♭.

What are other names for Co7?

Co7 is also known as C°7, C dim7. These are different notations for the same chord with the same notes: C, E♭, G♭, B♭♭.

All C chords

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