Mutable Instruments Streams[modifier]
Streams has a hidden lorenz attractor. To activate it, press this sequence :
Channel 1 button. Channel 2 button. Channel 1 button (long press). Channel 2 button (long press). ... 4 times.
In other words, a complete cycle through all modes (red and green version) on all channels.
Once in this mode:
SHAPE controls the rate (value of the time step) and is CV-controlled by EXCITE. AMOUNT controls whether amplitude or cutoff frequency are modulated. You can use it to make a CV/audio signal "wobble", or when nothing is patched into the input, you get a random source.
It's a very pleasing smooth modulation source!