A# Lydian Mode
Dreamy, floating major mode with raised 4th
What is the A# Lydian Mode?
Lydian is the fourth mode of the major scale — the major scale started from its 4th degree. Compared to the major scale, Lydian raises the 4th by a half step (#4 / b5). The raised 4th creates a floating, suspended quality that never quite settles — every melody feels slightly weightless. Lydian is the bright cousin of major: still happy, but more open and dreamy.
Notes in the scale: A# – C – D – E – F – G – A
Intervals: Root, 2, 3, b5, 5, 6, 7 (measured from the root)
Parent key: F major — shares the same seven notes
Progressions where the A# Lydian Mode fits
IVmaj7 vamp — in A# Lydian
A#maj7
I-II (Lydian) — in A# Lydian
A# → C
When to use the A# Lydian Mode
A# Lydian Mode draws its notes from F major, starting on A#. Use Lydian over a static major 7 chord, especially a IVmaj7 — that #4 over the IV becomes the natural 7 of the parent key, sounding consonant and lifted. Joe Satriani built a career on Lydian (the title track of 'Flying in a Blue Dream'), film composers like John Williams use it constantly ('Yoda's Theme'), and any jazz-fusion solo over a IVmaj7 vamp leans on it.
Blues Improvisation
Master blues soloing
Practice with Improvisio
See how the A# Lydian Mode works over chord progressions.
Try it in the trainer