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


Flea plus Modulus bass

Michael Peter Balzary is better known as Flea who is the groove behind funk-rock band the Red Hot Chili Peppers.

Flea DVD

Hal Leonard produce an instructional DVD plus all of the Red hot Chili Peppers transcription books and methods.

Modulus produce a series of Flea designed basses with the Funk Unlimited Flea 4 shown in the photograph below.

Modulus Flea 4


The table that follows lists previous BLOGoZON issues that relate to the CAGED4BASS methodology:-

C major scale box shapes
C major arpeggio box shapes
C pentatonic major scale box shapes


The table that follows lists previous BLOGoZON issues that relate to the AGEDC4BASS methodology:-

A natural minor scale box shapes
A minor arpeggio box shapes

This issue demonstrates the perfect scale to create bass-lines over minor chords regardless of the musical context - PENTATONIC MINOR.

The easiest example of the pentatonic minor scale is rooted on A natural, hence the A natural version of the AGEDC4BASS sequence is shown in the diagram that follows:-

AGEDC4BASS octave shapes

GuitarPro6 A natural octaves

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

AGEDC4BASS - A pentatonic minor scale 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 pentatonic minor are detailed below in the AGEDC4BASS manner:-

AGEDC4BASS - A pentatonic minor scale intervals

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

AGEDC4BASS - A pentatonic minor scale box shapes

Guitar Pro 6 icon

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

3Am1 box

4Gm1 box

4Em2 box

2Dm* box

3Cm* box

3Am1 box at fret 12


Ev'ry body's been there I don't mean on vacation....Zon Brookes


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