i did do it once on my VG88, as you can have any tuning you like. i think i started with B or C on the bottom. it was pretty freaky! i have noticed a few players tuning in fourths all the way across with C and F on the top two strings. the range is just so big with fifths and you're limited by what you can do with the top string. A4 is common on 8 string instruments with scale lengths from 24-25.5in, so if you work down from there, you get Bb, F, C, G, D, A, which is doable if you move some strings around, with what you would normally use for a B string on the 7 string on the bottom (down a semi), then an E string (up a semi), then a D string (down a tone), then a G string (no change!), an E string (down a tone) and the 008in A string on top On 8 Apr 2013, at 14:51, Per Boysen wrote: > The more I play fifths tuned string instruments (like the Cello and > the Stick) the more I like it and I'm curious about if it would even > be possible to tune a six stringed guitar in fifths?