The Alesis SR16 is a classic drum machine, popular not just for its wide range of options but also for its realistic sound. The 233 drum sounds are available in both dry form and sampled with digital reverb. The 50 preset patterns are not simply programmed sound but actual recordings made by live studio performers. The Dynamic Articulation feature means that drum sounds change their tonal content when played harder, just as real percussion instruments do. Build-in rhythmic variations, with A,B, and two Fill sections, complete MIDI implementation, flexible programming and editing features, velocity-sensitive pad buttons, and a footswitch input give you plenty of composition tools. Whether you just want some help songwriting or need live accompaniment for a show, the SR16 makes it easy to compose and save your own rhythms.