http://tinyurl.com/d42xcuk

Dr Drum beat machine - Make a beat today !
Along with a beat kit that includes multiple kits each with 12-pad sound production, it also has a 4-octave keyboard that can produce dozens of instruments and special effects to make music really sing. All you need is your computer and the Dr. Drum digital beat maker and you are on your way to studio sound quality and riveting beats.

http://tinyurl.com/d42xcuk