Guitar scale
F# blues scale (Gb blues)
The F# blues scale is the minor pentatonic plus the blue note (♭5), one extra semitone carrying all the tension and release of the blues. Best for blues, rock and country lead lines.
- Root
- F#
- Notes
- F#ABCC#E
- Formula
- m3-W-H-H-m3-W
- Parent scale
- F# minor pentatonic
- Learning path
- Step 5 of 5
The F# blues scale is the six notes F#, A, B, C, C# and E. Read as scale degrees from F#, that is 1, ♭3, 4, ♭5, 5, ♭7. Every note is a fixed distance from the one before it: m3-W-H-H-m3-W, where W is a whole step (2 frets) and H is a half step (1 fret), and m3 is three frets. That pattern is the whole scale. Move it so the root lands on a different note and you are playing that key's blues scale. Having only six notes, it fits a narrow set of chords: any triad built entirely from F#, A, B, C, C# and E sits under it without clashing. On the guitar this is not one shape but overlapping positions: the lowest F# sits at fret 2 on the low E string. 9 of the 104 song sheets charted here are in F#m / A.
Start here: one F# blues position
The notes inside frets 2 to 6 sit in the highlighted box above. The diagram below isolates that position and numbers the run to play. Learn this box first; other positions contain the same scale notes with different fingerings.
Play the box in this order
F# 1 → A ♭3 → B 4 → C ♭5 → C# 5 → E ♭7
Plays exactly the run numbered above, one note at a time.
Every F# on the neck
What notes are in the F# blues scale?
- F#1Root
- m3
- A♭3Minor 3rd
- W
- B4Perfect 4th
- H
- C♭5Tritone
- H
- C#5Perfect 5th
- m3
- E♭7Minor 7th
- W
- F#1octave
W whole step (2 frets), H half step (1 fret), m3 minor 3rd (3 frets). The same pattern from any other root gives that key's blues scale.
This scale is the F# minor pentatonic scale with one note added, the flat 5th (C). Slide into it or bend through it, but do not sit on it: the pull back to C# is the whole sound.
Chords that fit the F# blues scale
A chord fits this scale when all of its notes are already in the scale, which is a test you can run yourself rather than a style guide. Ordered by real use in the library.
How to practise the F# blues scale
- Frets 2 to 6, slowly. The position above, up and back, naming every note out loud. Naming is what turns a shape into a scale.
- Then find the next F#: B string, fret 7. Use the full neck diagram to find the scale notes around that root. Play root to root at 60 BPM, one note per beat; fingerings change when you move to a different string set.
- Then stop counting. Pick a song in F#m / A from the list below and improvise on these notes for two minutes. That is what the scale is for.
Songs in F#m / A on this site
9 of the 104 song sheets charted here are in F#m / A. Play this scale over any of them and every note lands inside the key.
F# blues scale: common questions
What notes are in the F# blues scale?
What is the formula for the F# blues scale?
What chords work with the F# blues scale?
How is the F# blues scale related to the F# pentatonic scales?
What is the easiest fingering for the F# blues scale?
How do I practise the F# blues scale?
More F# scales
This scale in other keys
