12bar Blues Guitar - Free Blues Guitar Tutorial and Forum

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12bar Blues Guitar - Free Scale and Chord Generator

Update: Back to hard coded HTML, better scaling on mobile devices

scale/chord image - click for image only

Remember (for comparison)

Options/settings:
Type:
Scale
Chord
Notes
Degrees
Key:
E
F
Gb/F#
G
Ab/G#
A
Bb/A#
B
C
Db/C#
D
Eb/D#
Scale/Mode:
Chords:

s: + or #, sharp
b: -, flat
Tuning:

Upside down
Show notation sign::
flats (b)
sharps (#)
Number of frets::

Color frets
Lefthand neck
Slide mode (notes above frets)
Overlay/Highlight
(for scales/modes):
Root Notes Red
Minor Pentatonic
Major Pentatonic
Blue Note b5
Blue Note b3
Blue Note b7
Custom notes

Show as:
Dots
Notes
Degrees
Notes + degrees

Custom
notes:


E
F
Gb/F#
G
Ab/G#
A
Bb/A#
B
C
Db/C#
D
Eb/D#
Custom
degrees:


1
2b
2
3b
3
4
5b
5
6b
6
7b
7
Custom tuning:
enable

1st
2nd
3rd
4th
5th
6th

7th
8th
9th

Total number
of strings:


(starting from 1st)
 

Basic use

Options/tips

The Notes

Name Half steps
(Semitones)
Example Shortcut Enharmonic
(same interval,
different name)
perfect unison 0 C - C P1, 1 diminished second
minor second 1 C - Db m2, 2b augmented unison
major second 2 C - D M2, 2 diminished third
minor third 3 C - Eb m3, 3b augmented second
major third 4 C - E M3, 3 diminished fourth
perfect fourth 5 C - F P4, 4 augmented third
diminished fifth (tritone) 6 C - Gb d5, 5b augmented fourth, diminished fifth,
"blue note"
perfect fifth 7 C - G P5, 5 diminished sixth
minor sixth 8 C - Ab m6, 6b augmented fifth
major sixth 9 C - A M6, 6 diminished seventh
minor seventh 10 C - Bb m7, 7b augmented sixth
major seventh 11 C - B M7, 7 diminished octave
perfect octave 12 C - C P8, 8 augmented seventh

Technical background

For those who are interested in php scripting:

There are many great scale and chord generators on the net. But this one is a bit different - it has special Blues extras like overlay of pentatonic scales, highlighting of Blue notes, slide mode or special tunings often used in Blues.
If you miss a chord, scale or tuning or find an error please email me!

The fretboard scheme is generated as an image using php. Scales and chords are stored as arrays containing the intervals. With an array containing all notes and an array containing the string notes all scale or chord positions on the fretboard are calculated and written as dot or note name.