Dirty Laundry by After Later Audio is a pretty heavy overtone generator. The FOLD side can function as a normal Buchla-inspired wave folder, but can also drift into chaos when the PRESS section is switched on. The PRESS section generates all kinds of harmonics that the FOLD section can cut its teeth on. The result is a nice range of harmonics, from simple folding to anarchy. The Press and Fold sections can work either as two parallel sections or as a single serial unit. There are dry/wet controls between the sections and at the end of the signal chain to facilitate crossfading between the two sections. The module works with all waveforms (be sure to try the language), but the sonic results will be cleanest and sound more pleasing with sine and triangle waveforms.