Modal RunsA#aug7 Chord (Augmented 7th)
Augmented 7th raises the 5th of a dominant 7th — root, major 3rd, sharp 5th, flat 7th — an altered dominant with extra bite. The notes of A#aug7 are A#, D, F#, G#.
A dominant chord dressed for more tension before resolving: common in jazz and blues turnarounds that want an extra push toward home.
A#aug7 voicings on guitar
Every playable, root-in-the-bass grip standard tuning offers, computed from the chord’s own formula — not a fixed shape library.
Use it in place of a plain dominant 7th right before resolving to the I chord and notice how much harder it pulls.
Formula and intervals
R - 3 - b6 - b7 — 4 notes.
Scales that fit A#aug7
Every scale below contains all of this chord’s notes — safe territory to improvise in over it.
Phrygian Dominant, Altered (Super Locrian), Whole Tone