I added two cheap echo pedals to my setup, when suddenly this sound occurred. I tried to find the source of the noise, but it was not one of the new pedals. And when I found the MultiFX module from the AE modular was self-resonating out of nothing, I decided not to stop, but to listen.
This is the abbreviated record on two tracks mixed with VST FX, one with phaser and some reverb, the other one with the infamous Riviera Hyper-Room reverb, which I tend to like.
