Fifths tuning is a non-standard tuning for the double bass

Double bass

The double bass, also called the string bass, upright bass, standup bass or contrabass, is the largest and lowest-pitched bowed string instrument in the modern symphony orchestra, with strings usually tuned to E1, A1, D2 and G2...

, used primarily in classical and jazz music. In this tuning, the double bass is tuned like a cello but an octave lower (C-G-D-A low to high).

Although fifths tuning was once the most common double bass tuning in France in the 19th century, standard fourths tuning (E-A-D-G) has since become the most used tuning for the instrument. Fifths has recently been repopularised by a handful of bassists, most notably American Red Mitchell

Red Mitchell

Keith Moore "Red" Mitchell Keith Moore "Red" Mitchell Keith Moore "Red" Mitchell (September 20, 1927, New York City - November 8, 1992, Salem, Oregon, was an American jazz double-bassist, composer, lyricist, and poet. He was the brother of Whitey Mitchell....

 and Canadian Joel Quarrington

Joel Quarrington

Joel Quarrington , is a Canadian double bass player, soloist and teacher.He was born in Toronto, and began playing the double bass at the age of eleven in order to complete a bluegrass trio with his brothers, Paul Quarrington and Tony Quarrington...

. Other players who use the tuning include Dennis Masuzzo, Silvio Dalla Torre, Paul Unger link and Larry Holloway. Although still relatively uncommon (most fifths players are in Canada), its popularity is ever increasing.

Its advocates say the advantages of fifths tuning are:

• Increased resonance, volume and quality of sound (the strings have more common overtones, causing the strings to vibrate sympathetically).
• Superior intonation with the rest of the string section due to the uniform tuning (for classical players).
• Best method of obtaining a low C, without an extension or a fifth string.
• Mostly used by jazz players for the major tenth which can be played easily without a position shift.