The Ketron SD2 Orchestral Wizard is a high-quality pocket size sound module designed for all PC and MIDI applications. It features a New Stereo Grand Piano and huge Orchestral voices such as Saxophones, Brass, Woodwinds, authentic Guitars, Accordions and many others. Used in conjunction with a Computer, Master keyboard, MIDI accordion or MIDI guitar, the SD2 offers an "all-in-one " great sound resource that can be used to greatly enhance standard MIDI files, as well as for Home and Studio compositions and recordings.