A drum machine is an electronic musical instrument that creates percussion. Drum machines may imitate drum kits or other percussion instruments, or produce unique sounds. Most modern drum machines allow users to program their own rhythms. Drum machines may create sounds using analog synthesis or play prerecorded samples.
Drum machines have had a lasting impact on popular music. The Roland TR-808, introduced in 1980, significantly influenced the development of dance and hip hop music; its successor, the TR-909, introduced in 1983, influenced genres such as techno, house and acid. The first drum machine to use samples of real drum kits, the Linn LM-1, was introduced in 1980 and adopted by rock and pop artists including Peter Gabriel, Fleetwood Mac, Prince, and Stevie Wonder. In the late 1990s, software emulations began to overtake the popularity of physical drum machines.