C♯7 8-string bass chord

How to play C♯7 on 8-string bass

The most common way, the first shape above: your middle finger on the F♯ string at the 7th fret, your index finger on the B string at the 6th fret, your ring finger on the E string at the 7th fret and your little finger on the A string at the 8th fret. Don’t play the D, G, C and F strings.

From the F♯ string 7 6 7 8 x x x x (x: not played, 0: open)

What notes are in C♯7?

C♯7, C♯ dominant seventh, is C♯, E♯, G♯ and B: the root (C♯), the major third (E♯), the perfect fifth (G♯) and the minor seventh (B). Its formula is 1 3 5 ♭7.

Are C♯7 and D♭maj7 the same?

No. Both add a seventh to D♭, but C♯7 adds the minor seventh, B, and D♭maj7 the major seventh, B♯. C♯7 sounds restless and wants to move on; D♭maj7 sounds settled and dreamy.

Can I play D♭ instead of C♯7?

Usually, yes: the song still works, with less pull. C♯7 is a dominant seventh, the V7 of F♯ major, and its E♯ and B lead straight into F♯.

Keys with C♯7

C♯7 is the V7 chord in F♯ major and the VII7 chord in E♭ minor, and the V7 of F♯ minor, the major fifth chord from its harmonic minor scale.