Eb Phrygian

The Eb Phrygian mode (also written D#) — Eb Fb Gb Ab Bb Cb Db — shown across the guitar neck.

Also written D# Phrygian. D# and Eb are the same pitch — Eb is the spelling in common use.

Swipe the neck sideways to see the higher frets.

Eb Phrygian is the natural minor with one note changed — the b2, Fb. That single note is what the mode sounds like; lean on it and the colour is obvious, avoid it and you are just playing minor.

The tool shows this from its parent key, B major, with D# — the same pitch as Eb — marked as where Phrygian begins, the same seven notes centered on B.