Guitar Scale Logic

Interactive Guitar Scale Finder

Guitar Scale Logic

F# Blues Guitar Scale in Open G

Blues scale notes, fretboard positions and guitar tabs for Open G.

Formula 1 b3 4 b5 5 b7
Tuning D B G D 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
B B
C
C♯
E
F♯
A
B
C
C♯
E
F♯
A
G
A
B
C
C♯
E
F♯
A
B
C
C♯
E
D
E
F♯
A
B
C
C♯
E
F♯
A
B
C
G
A
B
C
C♯
E
F♯
A
B
C
C♯
E
D
E
F♯
A
B
C
C♯
E
F♯
A
B
C
Root Note Scale Note

Scale Tablature

Position 1

D|------------------------------------4--|
B|---------------------------------5-----|
G|---------------------2--4--5--6--------|
D|---------------2--4--------------------|
G|---2--4--5--6--------------------------|
D|4--------------------------------------|

2-6 frets • five-fret position fragment • 13 notes

Theory & Context

Why This Shape Works

The F# Blues scale uses F♯, A, B, C, C♯, E and the formula 1 b3 4 b5 5 b7. In Open G tuning, the open strings run D B G D G D from highest to lowest, so use this map rather than a Standard-tuning shape. Use the map to locate each F# root, then select a five-fret position to see its tablature. The chord suggestions use notes from this scale.

Overview

Blues sounds gritty, tense and expressive. Try it for turnarounds, blues-rock phrasing and greasy lead work. The open strings in Open G form a G major chord: D-G-D-G-B-D from low to high. Find the fretted scale notes around those open strings.

Practice Tip

Treat the b5 as a passing colour and resolve it quickly for the classic bite. In Open G, compare the fretted notes with the open G, B and D strings.

  • F♯
  • A
  • B
  • C
  • C♯
  • E

Suggested Chords

Works Well With This Scale

These chords contain notes from the selected scale.

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