The first significant instrument produced by RMI was the Rock-Si-Chord, which emulated a harpsichord. The best-selling and most widely used instrument was the RMI Electra-piano, that was played by numerous artists in the late 1960s and early 1970s, including Steve Winwood, Genesis' Tony Banks and Yes' Rick Wakeman. Later, the company became a pioneer of digital synthesizers, including the Keyboard Computer and RMI Harmonic Synthesizer, the latter of which was used by Jean Michel Jarre. The company struggled to compete with digital synthesizers in the early 1980s, which led to its closure. A number of sample libraries featuring RMI instruments are available for modern digital keyboards.