Marbles

Mutable Instruments' random sampler in 18 HP: a generator of random gates (t) and random voltages (X, Y), with a DEJA VU section that loops or permutes past random decisions.

Key features

• t section: a jittery master clock on t2, split into two random gate streams on t1 and t3 by a coin toss, random ratios or drum-like patterns
• X section: three random voltages, their distribution's width, shape and bias set by SPREAD and BIAS
• STEPS morphs the voltages from smooth curves through sample-and-hold steps to notes quantized to a scale
• DEJA VU recycles past random decisions over a loop of 1 to 16 steps, for the t section, the X section or both
• External processing mode: the X section samples the voltage on the SPREAD input instead of its own random source
• Made from March 2018 to April 2022; the design is open source