I know, this is like a 6 string version of a low tuned 7-string. But it is more than that. If you love the sound of mandolins, or even plucked violins in your music... and don't forget the iconic James Bond's guitar sound - this is it!
You get the tone for the little known song "illuminate" from Imperial Drag. With a little drive, this guitar fill everything between a guitar and a bass, without mucking either of them up. Think of accentuation: like a clean guitar, or acoustic strum, use this in the same context. Not as a lead instrument, rather to embellish the primary parts. ...though I do use it as a lead part. Some of the coolest orchestral pats have that rare french horn or oboe part we love. This can be that instrument in a song.
If I were starting a band today, I would chose to be the baritone guitar player vs rhythm. It opens up an entirely uncharted palate of sounds and possible songs. I can not believe there is not some huge new rock band using this. We have a guy playing bass with an octave to do both guitar & bass? Why has no one thought " we need a baritone guitarist". It is like playing darts and never hitting the bull's eye. To me, this would be it. Invaluable when used correctly.