Eurorack is back as I've introduced an adaptor to both my Buchla boats, making those systems even more flexible and open to outside influences. Mutable Instruments "RINGS" is a resonator module that produces an expansive or clipped vibrating structure and everything in between, depending on parameters such as frequency, brightness, damping, etc. , all of which can be can be voltage controlled to one's liking. Even without the use of an external signal, "RINGS" is able to synthesize its own excitation, either a low-pass filtered pulse or bursts of what is lovingly known as noise! Let the mutation begin! Available from CONTROL in Brooklyn.