How to play F#7#9: a dominant 7th sharp 9 (the Hendrix chord) built on F#, 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: 2 1 2 2 x x (x = not played).
| Note | F# | A# | E | Gx |
|---|---|---|---|---|
| Interval | R | 3 | b7 | #9 |
F#7#9 is a dominant 7th sharp 9 (the Hendrix chord) with F# as its root. The full theoretical spelling is F#, A#, C#, E, Gx. This voicing omits the 5th, the tone guitarists drop first when fitting a chord onto six strings.
F#7#9 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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F#7#9 is spelled F#, A#, C#, E, Gx: the root, 3rd, 5th, flat 7th, sharp 9th. The common guitar voicing sounds F#, A#, E, Gx, leaving out the 5th.
Frets from the low E string to the high E string: 2 1 2 2 x x (x means the string is not played). Fret the A string at the 1st fret. Add the low E, D and G strings at the 2nd fret. Strum from the low E string down, skipping the B and high E strings.
F#7#9 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.
