Six Sonatas for Violin and Harpsichord, BWV 1014–1019 alto solo. At first declamatory in the "forte" passages, the "piano" responses are expressive but subdued. Bach's knowledge of the expressive qualities of the violin is shown in the opening phrases, written so they can be played on the G string, the lowest string on the violin, regarded as having a "noble" tone. As explains, citing the opening of BWV 1017/3 as an example, the G string's "energy and powerful voice make it a whole instrument in itself and the lower this voice is, the more opportunity it gives to expression to attain the sublime." Around the violin melody, in
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,