Violin completely losing tension. A violin in which the tuning pegs are slipping needs to be repaired by a luthier or violin repairperson. Peg dope or peg compound, used regularly, can delay the onset of such wear, while allowing the pegs to turn smoothly. The tuning G–D–A–E is used for most violin music, both in Classical music, jazz and folk music. Other tunings are occasionally employed; the G string, for example, can be tuned up to A. The use of nonstandard tunings in classical music is known as "scordatura"; in some folk styles, it is called "cross tuning". One famous example
Mute violin part of the first violin in his first string quartet of 1914 to be played by a mute violin. In a recording of his five string quartets by the Schönberg Quartet (Olympia OCD 457, 1994) the effect of the mute violin was imitated by an extra heavy sordino on an 'ordinary' violin. Mute violin The mute violin is a violin without or with a very shallow sound box. The instrument has a quiet, lean sound. The mute violin can be used as an exercise instrument in situations where the sound of a violin is experienced as annoying by neighbouring people.