How to play C7#5: a dominant 7th sharp 5 built on C, with 4 ways to play it, 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 3 2 3 x 4 (x = not played).
| Note | C | E | G# | Bb |
|---|---|---|---|---|
| Interval | R | 3 | #5 | b7 |
C7#5 is a dominant 7th sharp 5 with C as its root. The full theoretical spelling is C, E, G#, Bb. This voicing sounds every chord tone.
C7#5 is a diatonic chord (built from the key's own notes) in 0 major keys and 1 minor key. The roman numeral is the chord's place in that key; tap a key for all of its chords.
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C7#5 is spelled C, E, G#, Bb: the root, 3rd, sharp 5th, flat 7th. The common guitar voicing sounds every one of them.
Frets from the low E string to the high E string: x 3 2 3 x 4 (x means the string is not played). Fret the D string at the 2nd fret. Add the A and G strings at the 3rd fret. Add the high E string at the 4th fret. Strum from the A string down, skipping the B string; the low E string stays silent.
C7#5 belongs to one key: F minor (the V+, from the harmonic minor).
