Roland KD-120 Drum Machines are electronic devices

Roland KD-120 Drum Machines are electronic devices designed to produce the sounds of variety of percussion instruments. They take the place of a professional drummer with his set of drums and other percussion instruments. Drum machines are widely used, not merely in electronic music but also in a variety of musical compositions. These machines come in very handy when it is not possible to get a professional drummer for a performance or recording. Drum machines can provide carefully tested classical music that sound quite authentic. With smart use of the controls of the machine one can produce sounds of one’s choice. Early versions of drum machines were called rhythm machines and were first introduced commercially late in the 1960s. These machines were used merely as accompaniments for the organ. Ace Tone, later called Roland, produced the first successful drum machine, the ‘Rhythm Ace’.