Neutron adventures (n° 1) - Collapsing sounds 

Proton is really cheap.

Yes, it is possible to do that with just one : - OSC 1 : triangle - OSC 2 : square (with a bit of pulse width modulation : the Attenuator 2 is by default assigned to that, set the knob between graduations 2 and 3), tuned a fifth above OSC 1, - LFO : somewhere between sine and triangle, quite slow, - filter : nearly at the bottom, with key tracking enabled, and a little mod depth, and a lot of enveloppe depth, - enveloppes : longattack and long release, sustain only on the ENV 1, - portamento (« Slew limiter ») set high, - delay : time and repeat knobs around 10 o'clock, mix knob at 2 o'clock, and then a little patching : put the LFO out into the Att 1 input, and the Att 1 output to the delay time (here i have used the LFO of a second Neutron, so that the PWM and this « chorus » effect are not synchronized, but that is not really important). The slow modulation of the delay time gives the shifting of the pitch. There you'll have to set the LFO speed and the amount of modulation (by turning the Attenuator 1 knob) to get the desired sound. LFO must be slow enough so that its cycle length is about the duration of the longest notes you will play. Finally, i have added a bit of drive. Notice that the two pedals i'm using are modifying the sound quite a lot (especially the Dark light, which add another layer of pitch shifting). I think you can try any reverberation pedal or delay pedal (or emulation of that with a DAW) to get something close (the idea being to have more wet signal than dry signal).

@@lnefpd this is brilliant, I'm going to try it, thank you!