B Ionian aug ♯2 Scale
B Ionian aug ♯2 contains 7 notes: B, C𝄪, D♯, E, F𝄪, G♯, A♯. It has 3 sharps: D♯, G♯, A♯. The step pattern is W+H–H–H–W+H–H–W–H.
A bright, exotic mode that combines major warmth with an augmented stretch. The raised 2nd and raised 5th create a "stretched" major sound — familiar but slightly distorted, like a reflection in moving water.
The formula is 1, #2, 3, 4, #5, 6, 7. The #5 adds augmented tension to an otherwise major-sounding scale, while the #2 creates an augmented 2nd from the root. The combination of brightness (3, 6, 7) and exoticism (#2, #5) is useful for moments of transcendent beauty.
Apply this over augmented major 7th chords for a distinctly stretched quality. Use standard major shapes and raise both the 2nd and 5th by one fret. Best suited for brief, shimmering passages in film scoring or contemporary composition rather than extended improvisation.