B Lydian #9 Piano Scale
Piano scale diagram
B Lydian #9 Scale — Notes and Intervals
The B Lydian #9 scale is an exotic and aggressive variation of the Lydian mode. On Piano, the notes are B, D, D#, F, F#, G#, A#. It features a wide melodic gap that gives it a fusion edge, perfect for high-energy solos and modern jazz compositions that require a sharp, biting sound. Commonly used in Fusion, Modern Jazz, Progressive. Notable players include Allan Holdsworth, Brett Garsed. Use over 7#9#11 chords. A specialized fusion tool for adding a sharp, biting edge to Lydian-based lines.
Notes: B, D, D#, F, F#, G#, A#
Intervals: 1P, 2A, 3M, 4A, 5P, 6M, 7M
Degrees: 1 #2 3 #4 5 6 7
Formula: WH-H-W-H-W-W-H
Number of notes: 7
How to Play B Lydian #9 on Piano
On piano, the B Lydian #9 scale uses 4 black keys. With several black keys involved, let the thumb naturally fall on white keys where possible. Practice hands separately at first, paying attention to smooth thumb-under transitions.
The B Lydian #9 scale contains 4 sharps (D#, F#, G#, A#). Its relative minor is G# minor, which shares the same notes.
Practice Routine
Set a metronome to 80 BPM and play the B Lydian #9 scale in groups of four notes, shifting the starting note each repetition. This builds muscle memory across the entire scale range. After a week, try improvising short 4-bar phrases using only these notes.
Experiment with simple two-chord vamps rooted on B to let the characteristic intervals of the Lydian #9 scale come through clearly.
Piano Tips
At the piano, try voicing the B Lydian #9 scale in the left hand as blocked intervals (thirds or sixths) while the right hand plays the melody. This develops your harmonic ear and comping skills simultaneously.
The B Lydian #9 scale contains 7 notes (B, D, D#, F, F#, G#, A#). Use the interactive piano diagram above to explore this scale on Piano.