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
Power Gig: Rise of the SixString ships with a 2/3 scale six-string electric guitar, designed to be usable with "Power Gig" and other games in a similar fashion to a standard guitar controller. The edge of its fretboard contains colored markings corresponding to in-game notes. In the game's basic mode, the player must hold down any string(s) in the colored fret areas that match the displayed note patterns on screen, and then strum the strings in time. In the game's "Power Chord" mode, the colored notes on screen are replaced with colored numbers from 1 to 6, representing which string(s) must be held down in the