The Mutable Instruments Stages has a fantastic Easter Egg, a Harmonic Oscillator.
There’s no secret button combo or anything like that to remember, just use the provided cable that came with it and join the two sets of 3 pins on the back of the module.
I’ve made another video of this patch, but just using the Stages and doing a quick demo, here:
Arpeggio melody: Mutable Instruments Stages
Single high notes: Mutable Instruments Braids
Drums: Simmons SDS 8
Percussion: Folktek Ma