Metal Machine Music is the fifth studio album by American rock musician Lou Reed. It was recorded on a three-speed Uher machine and was mastered/engineered by Bob Ludwig. It was released as a double album in July 1975 by RCA Records, but taken off the market three weeks later. A radical departure from the rest of his catalog, the Metal Machine Music album features no songs or recognizably structured compositions, eschewing melody and rhythm for modulated feedback and noise music guitar effects, mixed at varying speeds by Reed. Also in 1975, RCA released a Quadrophonic version of the Metal Machine Music recording that was produced by playing it back both forward and backward, and by flipping the tape over.

Lewis Allan Reed was an American musician and songwriter. He was the guitarist, singer, and principal songwriter for the rock band The Velvet Underground and had a solo career that spanned five decades. Although not commercially successful during its existence, the Velvet Underground came to be regarded as one of the most influential bands in the history of underground and alternative rock music. Reed's distinctive deadpan voice, poetic and transgressive lyrics, and experimental guitar playing were trademarks throughout his long career.