The A Phrygian dominant scale has 7 notes: A – B♭ – C♯ – D – E – F – G. Phrygian dominant (Spanish Phrygian) is the fifth mode of harmonic minor: a major 3rd with a ♭2 and ♭6. It is the sound of flamenco, Middle Eastern melodies and many Bollywood songs.
Compared with the A major scale it has ♭2 (B♭ instead of B), ♭6 (F instead of F♯), ♭7 (G instead of G♯).
The explorer above is set to A Phrygian dominant: the whole neck is mapped, and you can zoom into any of its 7 positions, change the labels to degrees or fingers, and hear it up, down and in patterns.