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--------------------------------------|

Pattern shows scale notes in 2-6 frets for position 1.

Theory & Context

Why This Shape Works

F# Blues in Open G tuning puts the notes F#, A, B, C, C#, E under your fingers in a layout that feels gritty, tense and expressive. Open G stacks a ready-made major chord under your fingers, which changes how the neck breathes and makes partial chords and droning double-stops easier to hear. 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. Open G feels rootsy, slide-friendly and chord-rich.

Pro Tip

Treat the b5 as a passing colour and resolve it quickly for the classic bite. In Open G, it is great for rhythm guitar ideas that need instant harmony.

  • 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