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
Terz guitar guitar tuning on standard scale length guitars at normal string tension. At the 2018 NAMM Show, Reverend Guitars launched an electric Terz guitar in production along with Billy Corgan. Terz guitar Terz guitar (Terz meaning third) refers to either a small sized classical guitar or to the practice of tuning a standard guitar a minor third higher than standard guitar tuning (as though a capo were on the third fret of the guitar). The scale length is generally 530 mm (20.8 inches), though sometimes as long as 560 mm (22 inches). Mauro Giuliani and Caspar Joseph Mertz wrote extensively for