The Circadian Rhythms moves modular synthesizer technology another step forward by gluing all the pieces of a Eurorack system together. Each module or voice can now be programmed to play straight from an eight-channel, 512-step master trigger sequencer made for composers looking to make music on the modular. Building on the sequencing concept of step programing, multi-channel patterns of musical phrases can be repeated, looped, chained, muted, and manipulated on the fly in real-time, and most importantly, all of this is done through a simple interface. The array of multicolor illuminated buttons and innovative grid views provides a highly functional live performance sequencer. As a master controller, the heart of the modular synthesizer, Circadian Rhythms generates high precision clock and reset signals for all the other sequencers and devices in the system to align with and can also act as a high precision bridge for DAW synchronization.