Welcome to the world of Direct String Synthesis. The principle is simple: a focused feedback loop directed at a single string. This produces a powerful infinite sustain, rich in harmonics, for incredible guitar sounds. It's like amplifier feedback with greater control and predictability, at any volume, even through headphones. This hand-held synthesizer provides an amazing variety of textures and tonal slurs. It's virtually an instrument in itself. Read the following instructions and listen to the accompanying audio lesson. You're sure to discover many unique effects of your own but we recommend that you develop the basics outlined here first.