 In the 2010s, most modern drum machines are sequencers with a sample playback (rompler) or synthesizer component that specializes in the reproduction of drum timbres.Though features vary from model to model, many modern drum machines can also produce unique sounds, and allow the user to compose unique drum beats and patterns.Electro-mechanical drum machines were first developed in 1949, with the invention of the Chamberlin Rhythmate.