Chiptune music guru Sebastian Tomczak put together this Max/MSP Waveform Editor for the Novation Launchpad.
The idea is simple - the 8 x 8 grid is a representation of an audio waveform, whose shape is controlled by the grid. The frequency of the waveform is controlled by the horizontal aux buttons.
If anyone is interested in trying this out, contact Tomczak via his site, Little-Scale.
This crazy oscillator now has even more features