Chord & FretAb7(#5) — dominant seventh sharp five
Also written G#7(#5) — the same chord, spelled the other way.
Notes in Ab7(#5): Ab – C – E – GbFormula: 1 – 3 – #5 – b7In the formula, the numbers count steps of the major scale starting from the note that names the chord; "b" lowers a half step, "#" raises one — and a slash names the bass note.
The dominant with its fifth raised a semitone. The alteration tightens the tension and pushes the resolution — an extra step just before the arrival chord.
The same chord on all four instruments
Where to use it: A dominant heading to a minor chord, in jazz, choro and MPB turnarounds.
The shapes of Ab7(#5) don't end on this page — the whole neck holds dozens. In Chord & Fret, you check it note by note, playing any shape as an arpeggio; compare positions with their difficulty marked; and set a capo — the diagrams redraw above it. Start free. Unlock everything with Pro. Plays offline.
See the whole neck in Chord & Fret →Part of the Sevenths family.