The more strings your guitar has, the more opportunities you've got to mess around and create dissonant new tones through subtle retuning.
Inside the Alternate Reality Electric XII
An Introduction to the 12 String Guitar
Mountain Xpress 06.12.13 by Mountain Xpress - Issuu
How to Tune a 12-String Guitar - The Ultimate Guide
Here we have a rare 1920s Stella Long Scale 12-String acoustic guitar with classic decals adorning both front and back. We’re calling this a Stella,
~1920 Tonk Bros Long Scale 12-String Decalomania Acoustic Guitar Natural with Decals
Inside the Alternate Reality Electric XII
▷ 12-string guitar tuning online using microphone ❤️
Two Outrageous Harmonic Tunings For 12-String Guitar (Try Them Yourself!) -- Guitar Lesson Tutorial
Exotic Beauty, Startling Voice - FolkWorks
The New Yorker