A specific type of wavetable synthesis used in Ensoniq instruments. It’s comprised of a wavetable of sound data with a number of loops, rather than just one. These are generally called frames. Each frame has a slightly different harmonic structure, and they’re arranged sequentially so that the timbres progress naturally from one end to the other. This produces a sound that will change characteristics over time as it plays through the wavetable. Additionally it is possible to have playback begin and/or end at specific points in the wavetable, and this can further be manipulated by continuous controllers.