Musical tuning to the fundamental note of the unstopped, full string. The strings of a guitar are normally tuned to fourths (excepting the G and B strings in standard tuning, which are tuned to a third), as are the strings of the bass guitar and double bass. Violin, viola, and cello strings are tuned to fifths. However, non-standard tunings (called scordatura) exist to change the sound of the instrument or create other playing options. To tune an instrument, often only one reference pitch is given. This reference is used to tune one string, to which the other strings are tuned in the
Jazz violin symphonic approach to jazz fusion made him a popular fusion artist of the 1970s. In 1972, he featured prominently on Elton John's "Honky Chateau" album. In 1977, he pioneered the use of the 5-string electric violin, with a lower C string. He sometimes also uses a 6-string electric violin called the Violectra, with low C and F strings – not to be confused with the violectra he played from the late 1960s to the mid-80s which had 4 strings, but tuned an octave lower. Ponty was among the first to combine the violin with MIDI, electronic distortion boxes, phase shifters,