“Producers and engineers were freaked out by the 12-string. They said, ‘No, that sounds like crap – go back to the Precision direct’”: Cheap Trick’s Tom Petersson on how he pioneered the 12-string bass and influenced a generation of players

Master the 12-string guitar: restringing, tuning and strumming made simple

How Is A 12 String Guitar Tuned? Here's A Step-By-Step Guide - Play The Tunes