Dr. Dre Fiona Apple and Alanis Morissette, In the past few years Elizondo has since worked for many of Dr. Dre's productions. Dr. Dre also told "Scratch" magazine in a 2004 interview that he has been studying piano and music theory formally, and that a major goal is to accumulate enough musical theory to score movies. In the same interview he stated that he has collaborated with famed 1960s songwriter Burt Bacharach by sending him hip hop beats to play over, and hopes to have an in-person collaboration with him in the future. Dr. Dre has stated that he is a perfectionist
Headphones used for early radio work. In early powered radios, the headphone was part of the vacuum tube's plate circuit and carried dangerous voltages. It was normally connected directly to the positive high voltage battery terminal, and the other battery terminal was securely grounded. The use of bare electrical connections meant that users could be shocked if they touched the bare headphone connections while adjusting an uncomfortable headset. In 1958, John C. Koss, an audiophile and jazz musician from Milwaukee, produced the first stereo headphones. Previously, headphones were used only by the US navy, telephone and radio operators, and individuals in