The sensors attached to his fingers pick up this charge and use it to beat a virtual drum machine.
Used this way, the laptop functions as a powerful and flexible drum machine.
Others let you edit each individual voice in the drum machine.
But that's what he's done on this recording, which comes complete with synthesizers and drum machine.
It was a drum machine making its lumbering way down the street.
British Dictionary definitions for drum machine
a synthesizer specially programmed to reproduce the sound of drums and other percussion instruments in variable rhythms and combinations selected by the musician; the resulting beat is produced continually until stopped or changed