The Kurzweil K150 is an electronic musical instrument created by Kurzweil Music Systems in the 1980s. It is an 88-key synthesizer and digital sampler that is capable of producing a wide range of sounds and effects. It has a built-in drum machine and sequencer, as well as an array of MIDI connections. The K150 was popular among professional musicians and producers in the 1980s and 1990s and is still used today by some producers.