A# Phrygian Mode

What is the A# Phrygian Mode?

Phrygian is the third mode of the major scale, and its defining feature is the ♭2 — a half step right above the root that gives it an immediately recognizable dark, exotic flavor. It's the sound of flamenco guitar and has deep roots in Spanish and Middle Eastern musical traditions. Here's how the A# Phrygian Mode lays out on the fretboard. This scale is enharmonically equivalent to Bb Phrygian.

Notes and Positions

The third mode - dark and Spanish-flavored. The flat 2 is distinctive. On bass, the fretboard view helps you visualize where the important tones sit for building lines across positions. Use a finger-per-fret approach first, then add shifts only when the line needs a wider range. In the key of A#, the notes are: A#, B, C#, D#, E#, F#, G#.

How to Use It

You'll often hear it in Metal, Flamenco, and Middle Eastern. A good way to internalize the sound is to sing the root, then sing a few scale degrees before you play them.

Practice root-on-E and root-on-A boxes separately, then connect them with one clean position shift. Use the interactive fretboard above to spot repeats of the same note on different strings and frets.