CAGED4BASS front cover

A method for 4-string bass guitar using linked octave shapes. Enables systematic navigation of the bass guitar fingerboard for standard and 3 notes per string scale and arpeggio box shapes.

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CAGED4BASS back cover


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In BLOGoZON No.40 the box shapes for the A minor blues scale were presented using the AGEDC4BASS methodology - this is the CAGED guitar system adapted and improved for minor scales and arpeggios on 4-string bass guitar.

AGEDC4BASS logo

In this BLOGoZON we take a closer look at the A minor blues scale box shapes and join them all together to form one long AGEDC4BASS chain.

Hence the AGEDC4BASS sequence is shown for A natural in the diagram that follows:-

AGEDC4BASS octaves

GuitarPro6 A natural octaves

The diagram that follows shows all of the A minor blues scale notes plotted over the entire 4-string bass guitar's fretboard in the AGEDC4BASS style:-

AGEDC4BASS note names

Once again a more long term solution to fretboard navigation is to see scales/arpeggios as INTERVAL shapes rather than note names - as these are universal to all scales, arpeggios and chords rather than specific to one particular root note - with this in mind the intervals for the A minor blues scale are detailed below in the AGEDC4BASS manner:-

AGEDC4BASS intervals

The table and tabbed panel below detail all five box shapes for the A minor blues scale in the AGEDC4BASS style.


AGEDC4BASS - A blues scale box shapes

YouTube icon

Flash iconGuitar Pro 6 icon

3Am1 pdf
4Gm1 pdf
4Em2 pdf
2Dm* pdf
3Cm* pdf
3Am1 at 12 pdf

  • 3Am1
  • 4Gm1
  • 4Em2
  • 2Dm*
  • 3Cm*
  • 3Am1 at 12

GuitarPro6 3Am1 box shape

GuitarPro6 4Gm1 box shape

GuitarPro6 4Em2 box shape

GuitarPro6 2Dm* box shape

GuitarPro6 2Dm* box shape

GuitarPro6 3Am1 box shape at 12



  • 3Am1
  • 4Gm1
  • 4Em2
  • 2Dm*
  • 3Cm*
  • 3Am1 at 12

3Am1 box shape

4Gm1 box shape

4Em2 box shape

2Dm* box shape

3Cm* box shape

3Am1 box shape at 12



Once the individual box shapes have been assimilated all five shapes should be linked together and played in one continuous exercise (with the first shape - 3Am1 - being repeated at the 12th fret).

The video shown to the right demonstrates the AGEDC4BASS chain-linked sequence for the A minor blues scale box shapes.


The complete TAB for the previous exercise follows:-

A minor blues scale box shapes TAB


The box shapes for the previous exercise follows:-

A minor blues scale box shapes

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A minor blues scale box shapes pdf

A minor blues scale box shapes TAB pdfA minor blues box scale box shapes TAB pdf


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