History of the violin also apply sonic effects. Electric violins may have four strings, or as many as seven strings. Since the strength of materials imposes limits on the upper string, it is usually tuned to E5, with additional strings tuned in fifths below the usual G3 of a typical four-string violin. The five-string electric violin shown in the gallery below was built by John Jordan in the early 21st century, and is tuned C G D A E. Boyden, David The History of Violin Playing from its origins to 1761. Oxford University Press, Oxford, 1965. . History of the violin The violin, viola,
The Well-Tuned Piano third, consider that 5:4 is equivalent to 386 cents () and 9:7 is equivalent to 435 cents (). This difference is audible to the listener by comparing the tuning for each pitch of the western chromatic scale with the chromatic scale used in "The Well-Tuned Piano". "The Well-Tuned Piano" is based on a pitch lattice of perfect fifths and harmonic sevenths. "The Well-Tuned Piano", being improvisatory in nature, as well as ever-changing, has no specific form. The closest a listener can come to understanding the structure of Young's piece is by studying the liner notes from the 1981 Gramavision recording.