C# Lydian #9 Piano Scale
Piano scale diagramAdvanced
C# Lydian #9 Scale — Notes and Intervals
The C# Lydian #9 scale is an exotic and aggressive variation of the Lydian mode. On Piano, the notes are C#, E, F, G, G#, A#, C. 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: C#, E, F, G, G#, A#, C
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
Musical Character
An exotic Lydian variant with a #9 that creates a wide melodic gap — aggressive and biting, perfect for high-energy fusion solos.
Genres & Notable Artists
Genres: Fusion, Modern Jazz, Progressive
Notable players: Allan Holdsworth, Brett Garsed
How to Use the C# Lydian #9 Scale
Use over 7#9#11 chords. A specialized fusion tool for adding a sharp, biting edge to Lydian-based lines.
Origin & Background
A modern synthetic scale used in fusion guitar for its aggressive, angular character.
How to Play C# Lydian #9 on Piano
On piano, the C# Lydian #9 scale uses 3 black keys. Start with your thumb on C# and use the black keys as landmarks for consistent finger placement. Standard major or minor fingering patterns apply.
The C# Lydian #9 scale contains 3 sharps (C#, G#, A#). Its relative minor is A# minor, which shares the same notes.
Practice Routine
Begin by playing the C# Lydian #9 scale ascending and descending at 100 BPM using a metronome, one note per beat. Once comfortable, practice in thirds (C#-F, E-G) to build intervallic familiarity. Spend 5 minutes daily on this pattern before increasing tempo by 10 BPM.
Experiment with simple two-chord vamps rooted on C# to let the characteristic intervals of the Lydian #9 scale come through clearly. This scale is especially effective in fusion contexts.
Piano Tips
At the piano, try voicing the C# 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. Aim for a aggressive quality in your phrasing to match the natural character of this scale.
Related Scales
The C# Lydian #9 scale contains 7 notes (C#, E, F, G, G#, A#, C). Use the interactive piano diagram above to explore this scale on Piano.