BCAGED octaves front cover

A new fretboard navigation method for 6-string bass guitar (BEADGC tuning) using linked octave shapes. The method allows complete fretboard freedom for both standard and 3 notes per string scale and arpeggio box shapes.

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BCAGED octaves back cover

Roscoe Century Standard 5 string bass guitar

Roscoe CS5 body

Keith B Roscoe has created the Century Standard 5 for the discerning bass player who is on a budget but still wants hand crafted excellance.

Buy your own Century Standard from Bass Direct in Leamington Spa, Warwickshire, England.

Watch out for the in-depth report on the Roscoe Guitars factory visit by Zon Brookes at cagedoctaves.com

Roscoe headstock

C major scale 3nps box shapes for 6-string bass

In at the deep end this week with three notes per string box shapes for the 6-string bass guitar - this is definitely not for the faint hearted amongst you.

The diagram that follows shows all seven of the CAGED octaves variant - ZZZZZZ octaves - for use with the three notes per string patterns on the 6-string bass, once again the all important orange letters are missing:-

ZZZZZZ octaves 3nps logo

The ZZZZZZ octaves logo follows:-

ZZZZZZ octaves logo

The ZZZZZZ octaves sequence for 6-string bass guitar is shown for C natural in the next diagram:-

ZZZZZZ octaves C natural

GuitarPro6 C natural octaves

The diagram that follows shows all of the C major scale notes plotted over the 6-string bass guitar's fretboard in the ZZZZZZ octaves style:-

ZZZZZZ octaves C major scale notes

GuitarPro6 c major scale

As always 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 C major scale are detailed below for the 6-string bass guitar in the ZZZZZZ octaves manner:-

ZZZZZZ octaves C major scale intervals

The tabbed panel below details all seven 3 notes per string patterns for the C major scale box shapes.

6 string bass - C major scale 3 notes per string box shapes

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6Z4Z1 pdf

6Z4Z2 pdf

4Z2 pdf

5Z2 pdf

5Z3 pdf

5Z3Z1 pdf

6Z3Z1 pdf

6Z4Z1 at 12 pdf

  • 6Z4Z1
  • 6Z4Z2
  • 4Z2
  • 5Z2
  • 5Z3
  • 5Z3Z1
  • 6Z3Z1
  • 6Z4Z1 at 12


  • 6Z4Z1
  • 6Z4Z2
  • 4Z2
  • 5Z2
  • 5Z3
  • 5Z3Z1
  • 6Z3Z1
  • 6Z4Z1 at 12

6Z4Z1 box

6Z4Z2 box

4Z2 box

5Z2 box

5Z3 box

5Z3Z1 box

6Z3Z1 box

6Z4Z1 box at 12

Roscoe CS5 body

Can you handle it....Zon Brookes

The very best of Sharon Redd

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