The A♭ Lydian is the 4th mode of the Ab Major scale. It has a dreamy, floating, ethereal, magical, otherworldly character. On guitar it appears at Position 4 in the fretboard pattern — root note Ab.
Parent Major ScaleAb Major — A♭ Lydian shares the same notes as Ab Major but starts on Ab
Best Used InFilm Scores, Prog Rock, Fusion, New Age
Famous ExamplesThe Simpsons theme, Flying (Beatles), Joe Satriani, Steve Vai
Key insight: The ♯4 (raised 4th) is the magic note of Lydian — one semitone above perfect 4th. It creates the floating, unresolved lift.
The 5 Missing Notes™ — Beyond A♭ Lydian
The A♭ Lydian is one of 7 diatonic modes in the Dead Sea Scales system. Using the 5 Missing Notes™ framework, each mode generates 7 extended variations — giving you access to all 42 total modes in any key including A♭.
Same Mode, Every Key
The Lydian pattern is identical in every key — the formula never changes. Explore the same mode in other keys:
Home: A♭ Lydian is major territory — Ionian with a ♯4. Start here. Address: 4th mode of E♭ Ionian — the 5 Missing Notes are read from E♭, not A♭. Home vs Address →