The Well-Tuned Piano recording made in 1962 cuts off suddenly after only an hour and a half. Young has also been influential to many composers and musicians throughout his life. Dennis Johnson cites Young as an influence in his composition, "The Second Machine", which is based on four single pitches of Young's "Four Dreams of China". Composer and critic Kyle Gann has said that "The Well-Tuned Piano", "may well be the most important American piano work since Charles Ives's "Concord Sonata", in size, in influence, and in revolutionary innovation." Gann has also called the piece "the most important piano work of the late
Seven-string guitar Mexico, although the modern six-string instrument has become far more common. Seven-string instruments retain current popularity in parts of South America, notably Brazil, where they became an important instrument in the "choro" music of the 19th century, which is currently (2015) experiencing a revival. The Russian guitar or gypsy guitar is a seven-string acoustic guitar tuned to the open G tuning (DGBDGBD), which arrived or was developed early in the 19th century in Russia, possibly as a development of the cittern, the kobza and the torban. It is known in Russia as the semistrunnaya gitara ("семиструнная гитара") or affectionately as