Octave twelve Octave twelve An octave twelve is a type of 12-string guitar fitted with a short-scale neck and a small solid body. It is tuned one octave higher than a standard guitar giving it the tonal range of a mandolin and enabling a guitarist to achieve a mandolin sound without learning mandolin fingering. The effect is similar to that of capoing a standard 12-string guitar at its twelfth fret. However, unlike a standard 12-string guitar, the courses of strings tuned in unison, rather than in octaves. The octave twelve was invented by engineers at Vox, which sold the octave twelve as
Tenor guitar Freeman to have a better six string guitar sonority for rhythm guitar work than the normal tenor guitar with its very high A string. However, it was still tuned CGDA so that it could still be played by tenor banjoists. The Eddie Freeman Special was based on a six string model and it had a larger six string body and a six string scale length of 25.25 inches, rather than the tenor's smaller body and normal 23 inch scale length. The CGDA tuning used was re-entrant with the C and D tuned in the same octave and the G and