The Moogerfooger CP-251 is a truly different beast than the rest of the 'foogers. It is designed primarily to create or modify the CV (control voltage) signals for use with the CV Inputs of the other Moogerfoogers, Little Phatty, Voyager, or basically any analog synth that has CV Inputs. You can mix multiple CVs and then control their output with a continous foot controller. You can also sweep the frequency of its built-in LFO and then control how much of it goes to something else. You can even use Noise as either an audio source or as a control source. The Lag Processor allows you to add "Glide" to any control signal with separate Lag (Glide) times for Rising and Falling voltages. (Too cool!!!) And the Sample and Hold lets you create those random values for Pitch ( like the R2D2 droid) or Filter (like the opening sound of Karn Evil 9). You'll never run out of ways to use it... It's the Swiss Army Secret Weapon for analog synthesists!