Open G tuning d g b d'>2. </score> is used by the Russian guitar, which has seven strings tuned mostly in triads, in contrast to other guitars, which are tuned mostly in fourths. Dobros use a full six-string tuning with a bottom G: G-B-D-G-B-D, low to high. The two lowest strings are, accordingly, tuned three semitones higher for the lowest string (from E up to G) and two semitones higher for the second-lowest string (from A up to B) while the highest string is tuned two semitones lower (from E down to D), relative to standard tuning. The 5-String Banjo's standard tuning is
Contrabass guitar Contrabass guitar A contrabass guitar is a low-register plucked string instrument in the guitar family with four, five or six strings. It is often called, simply, a "six string bass guitar". The "five string bass guitar" is rarely called a contrabass guitar, even though it typically has the same lowest note. Contrabass guitars have been around since 1899, when a "Grand Concert Contra Bass Guitar" was listed in Joseph Bohmann's catalogue. Bohmann, a violin, mandolin, guitar and zither manufacturer from Chicago, developed a large 6-string guitar. While some logically speculate that this instrument was tuned one octave lower than a