How to play C#7#11: a dominant 7th sharp 11 built on C#, with 1 voicing, the notes, the keys it belongs to, and songs that use it.
The first diagram is a common voicing: played at the first few frets. An X above a string means don't play it; an O means play it open.
Frets from the low E string to the high E string: x 4 3 4 x 3 (x = not played).
| Note | C# | E# | B | Fx |
|---|---|---|---|---|
| Interval | R | 3 | b7 | #11 |
C#7#11 is a dominant 7th sharp 11 with C# as its root. The full theoretical spelling is C#, E#, G#, B, Fx. This voicing omits the 5th, the tone guitarists drop first when fitting a chord onto six strings.
C#7#11 is not a diatonic chord in any major or minor key: it turns up as a borrowed chord, a passing chord or an altered dominant, which is part of its color.
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C#7#11 is spelled C#, E#, G#, B, Fx: the root, 3rd, 5th, flat 7th, sharp 11th. The common guitar voicing sounds C#, E#, B, Fx, leaving out the 5th.
Frets from the low E string to the high E string: x 4 3 4 x 3 (x means the string is not played). Fret the D and high E strings at the 3rd fret. Add the A and G strings at the 4th fret. Strum from the A string down, skipping the B string; the low E string stays silent.
C#7#11 is not a diatonic chord in any major or minor key: it turns up as a borrowed chord, a passing chord or an altered dominant, which is part of its color.
