Mutable Instruments Rings Resonator Eurorack Module Three resonator models: modal resonator (as used in Elements), sympathetic strings (stack of comb filters), string with non-linearity/dispersion (comb filter with multimode filter and non-linearities in the loop) Pseudo-polyphony of up to 4 notes. Each new note is played on its own virtual string, while the previously played note(s) still decay