GyroVibe is the first of the Twister Series, a new line of Audio Unit effects from Music Unfolding. The Twister Audio Units all have a single, huge knob to control all parameters. Whether you need to make rough adjustments or fine tune a setting, the big knob takes the hassle out of using knobs on a software interface.GyroVibe introduces our new driven multi-stage filter. It sounds very smooth and when driven, it yields a distortion with a rich, buttery quality. Gyrovibe is a classic vibrato chorus effect with a wide range of sounds. It's great for keyboards -- especially for a cool 60's Hammond sound. It also produces a wide range of rich, full vibrato and chorus effects for guitar.