F# Blues Scale
Notes in the F# Blues Scale
| Degree | Name | Note | Frequency (A=440) |
|---|---|---|---|
| 1 | Tonic | F# | 369.994 Hz |
| ♭3 | Minor Mediant | A | 440.000 Hz |
| 4 | Subdominant | B | 493.883 Hz |
| ♯4 | Blue Note | C | 261.626 Hz |
| 5 | Dominant | C# | 277.183 Hz |
| ♭7 | Subtonic | E | 329.628 Hz |
Interval Pattern
| Step | Interval | Semitones | From Note | To Note |
|---|---|---|---|---|
| 1 | Aug 2nd (WH) | 3 | F# | A |
| 2 | Whole Step (W) | 2 | A | B |
| 3 | Half Step (H) | 1 | B | C |
| 4 | Half Step (H) | 1 | C | C# |
| 5 | Aug 2nd (WH) | 3 | C# | E |
| 6 | Whole Step (W) | 2 | E | F# |
Chords Built on Scale Degrees
| Degree | Note | Chord | Quality |
|---|---|---|---|
| 1 | F# | F# (complex) | other |
| ♭3 | A | A minor | minor |
| 4 | B | B (complex) | other |
| ♯4 | C | C (complex) | other |
| 5 | C# | C# (complex) | other |
| ♭7 | E | E (complex) | other |
Key Signature
6 ♯ — The F# key signature uses F#, C#, G#, D#, A#, E#.
F# Blues Scale in Practice
The F# Blues Scale uses the key signature of 6 sharps (F#, C#, G#, D#, A#, E#). F# major has six sharps and is enharmonically equivalent to Gb major. It is used when a sharp key is preferred over the flat alternative in notation. On guitar, F# positions offer open-string resonance for fingering positions for this scale.
The blues scale adds the flat 5th (blue note) to the minor pentatonic scale, creating the characteristic dissonant tension central to blues, jazz, and rock music.
Tuning Frequencies Across Temperaments
Frequencies shown at A=440 Hz. View full temperament data for any note.
| Note | Equal Temp. | Pythagorean | Just Intonation |
|---|---|---|---|
| F# | 369.994 Hz | 371.251 Hz | 367.911 Hz |
| A | 440.000 Hz | 440.000 Hz | 436.043 Hz |
| B | 493.883 Hz | 495.000 Hz | 490.548 Hz |
| C | 261.626 Hz | 260.740 Hz | 261.626 Hz |
| C# | 277.183 Hz | 278.437 Hz | 279.067 Hz |
| E | 329.628 Hz | 330.001 Hz | 327.032 Hz |
Related Scales
Guitar: F# Blues Scale Positions
The F# key offers 6 sharps (F#, C#, G#, D#, A#, E#) on guitar. Sharp-side keys like F# are idiomatic guitar keys because open strings (E, A, D, G, B, E) align with the scale's natural resonance points.