Chord & FretA7(#5) — dominant seventh sharp five
Notes in A7(#5): A – C# – E# – GFormula: 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.
Every region of the neck hides more shapes of A7(#5). 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.