Guitar Scale Logic

Interactive Guitar Scale Finder

Guitar Scale Logic

F# Blues Guitar Scale in Half Step Down

Blues scale notes, fretboard positions and guitar tabs for Half Step Down.

Formula 1 b3 4 b5 5 b7
Tuning D# A# F# C# G# D#
Scale Notes 6 notes

Interactive fretboard

Scale Map

Root notes are highlighted in amber. Use the buttons to isolate each five-fret position.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
D#
E
F#
A
B
C
C#
E
F#
A
B
C
C#
A#
B
C
C#
E
F#
A
B
C
C#
E
F#
F# F#
A
B
C
C#
E
F#
A
B
C
C#
E
C# C#
E
F#
A
B
C
C#
E
F#
A
B
G#
A
B
C
C#
E
F#
A
B
C
C#
E
F#
D#
E
F#
A
B
C
C#
E
F#
A
B
C
C#
Root Note Scale Note

Scale Tablature

Position 1

D#|---------------------------------1--3--|
A#|------------------------1--2--3--------|
F#|------------------0--3-----------------|
C#|------------0--3-----------------------|
G#|---1--3--4-----------------------------|
D#|3--------------------------------------|

Pattern shows scale notes in 0-4 frets for position 1.

Theory & Context

Why This Shape Works

F# Blues in Half Step Down tuning puts the notes F#, A, B, C, C#, E under your fingers in a layout that feels gritty, tense and expressive. Half step down keeps standard tuning geometry while lowering the overall pitch, which softens the string feel and gives classic rock phrasing a slightly darker colour. On this page you can switch between all visible notes or five smaller positions, study a pre-rendered tab pattern for each zone and match the sound against chords that stay inside the scale. Because the interval formula is 1 b3 4 b5 5 b7, every diagram here is generated from exact semitone math instead of guessed text. Start with Position 1 to lock in the tonic, then connect Positions 2 and 3 so you can move into riffs, lead fills and improvised phrases without losing the key center.

Overview

Blues sounds gritty, tense and expressive and is especially useful for turnarounds, blues-rock phrasing and greasy lead work. Half Step Down feels familiar but slightly darker and looser.

Pro Tip

Treat the b5 as a passing colour and resolve it quickly for the classic bite. In Half Step Down, it is easy to adapt if you already know the standard shapes.

  • F#
  • A
  • B
  • C
  • C#
  • E

Suggested Chords

Works Well With This Scale

Chord options generated from the same note pool.

  • F#mminor
  • F#5power
  • F#m7minor 7
  • F#sus4sus4
  • Amminor
  • A5power
  • Asus2sus2
  • B5power
  • Bsus4sus4
  • Bsus2sus2

Related Pages

Related Scales