Dizzy Gillespie Gillespie favored mouthpieces made by Al Cass. In December 1986 Gillespie gave the National Museum of American History his 1972 King "Silver Flair" trumpet with a Cass mouthpiece. In April 1995, Gillespie's Martin trumpet was auctioned at Christie's in New York City with instruments used by Coleman Hawkins, Jimi Hendrix, and Elvis Presley. An image of Gillespie's trumpet was selected for the cover of the auction program. The battered instrument was sold to Manhattan builder Jeffery Brown for $63,000, the proceeds benefiting jazz musicians with cancer. He was given the Grammy Lifetime Achievement Award. The next year, at the Kennedy
String instrument were now standard instruments for chamber and smaller orchestras. At the same time, the 19th century guitar became more typically associated with six string models, rather than traditional five string versions. Major changes to string instruments in the 20th century primarily involved innovations in electronic instrument amplification and electronic music – electric violins were available by the 1920s, and were an important part of emerging jazz music trends in the United States. The acoustic guitar was widely used in blues and jazz, but as an acoustic instrument, it was not loud enough to be a solo instrument, so these genres