The CR-78 is a really great little box from Roland. It's a classic analog Rhythm Machine, not a drum machine, and was the first to use a microprocessor. It has 34 built in preset rhythm patterns which can be varied at the push of a button. These patterns include Rock, Disco, Waltz, Shuffle, Slow Rock, Swing, Fox Trot, Tango, etc... Some are cool, but the ability to vary them gives you some creative control. As for the drum sounds, the CR-78 offers 14 very electronic yet analog drum tones. Sounds include Kick, Snare, Rim, Cow Bell, HiHats, Cymbals, Congas, Bongos, Tambourine and Guiros. With 11 variation effects and the ability to adjust Tempo, accents, and fade in/outs the CR-78 is still capable of producing nice rhythms for use in ambient, HipHop, dub, and other electronic forms of music.