Seven-string guitar string is augmented with a high octave string. Many of McGuinn's notable guitar solos utilize the G string of the twelve-string guitar to perform the main melody, and therefore the Martin seven-string guitar was designed to achieve this extended range playing without the need for doubling all six of the guitar's strings. In 2010, Inox Guitars has created a mix of the Brazilian Viola caipira and the Russian semistrunka (семиструнка). This instrument has 2 bass strings (as the 6th and 7th strings of the semistrunka) and five treble courses (as the Viola caipira) and it is used in open tuning
Matt Heafy Signature Dean Guitar on this guitar has had a completely original carve away made where the neck and body meets. (Matt Heafy and the Dean Woodshop guys cut back a lot on the heel of the neck to get the most amount of playability without hurting the tone of the guitar) This guitar also has a new feature for the ML series by adding two more frets to the neck, making it a twenty-four fret fretboard, instead of the original 22 fret fretboards on the MLs and most Dean Guitars for that matter. The fretboard is an ebony fretboard with twenty-four frets as