 Essentially, the QS synths' architecture is still based on the original Quadrasynth, but with the important addition of a modulation matrix, allowing users to assign virtually any controller source to any modulation parameter.Many of the sounds in the Preset and User banks were re-written, and new samples were created, including samples of Keith Emerson's infamous Yamaha GX1 synthesizer.Emerson even wrote new patches for it, and demonstrated the new QS8 at a release party for Alesis in 1996.