This tuning is the same as the Bass 4ths 8-string tuning except that the three highest strings are detuned a half step creating a major 3rd interval between the 3rd and 4th strings. This is similar to the Guitar Intervals tuning except that, with this tuning, strings 2-7 share the same letter names and are one octave lower than a standard tuned 6-string guitar.

1. A
2. E (-4th)
3. B (-4th)
4. G (-3rd)
5. D (-4th)
6. A (-4th)
7. E (-4th)
8. B (-4th)