 Early drum machines sounded drastically different than the drum machines that gained their peak popularity in the 1980s and defined an entire decade of pop music.The most iconic drum machine was the Roland TR-808, widely used in hip hop and dance music.Other classic drum machines include the Alesis HR-16, Korg Mini Pops 120, E-MU SP-12, Elektron SPS1 Machinedrum, Roland CR-78, PAiA Programmable Drum Set, LinnDrum, Roland TR-909 and Oberheim DMX.