Sebsongs - Rhytmatic

Rhythmatic is a complete analog drum machine for Eurorack, inspired by the iconic CR-78 and packed with modern features. It includes six classic analog drum voices, Bass Drum, Snare Drum, Low Conga, Rim Shot, Hi-Hat, and Cymbal.

The built-in sequencer supports up to 64 patterns with polymetric sequencing across 16 steps, and it comes pre-loaded with original CR-78 patterns and exclusive banks by Sebsongs Modular, Konstantine, and Salkinitzor.
A standout feature is the central randomization knob, which adds or subtracts steps to create evolving patterns—ideal for live performance. Holding the shift button transforms this knob into a loop recorder, capturing real-time tweaks and changes. Rhythmatic also includes voice mute buttons, configurable trigger I/O jacks, voltage control over key parameters, external clock/reset inputs, and flexible audio routing. Combining vintage sound with creative control, Rhythmatic is a versatile and performance-ready analog drum module.

Features:
• Six analog drum voices: Bass Drum, Snare Drum, Low Conga, Rim Shot, Hi-Hat, and Cymbal
• Tune and decay controls for Bass Drum and Snare, decay control for Cymbal
• 64-step sequencer with polymetric capabilities
• 64 pre-programmed patterns, including CR-78 classics and artist-created banks
• Real-time pattern randomization with central performance knob
• Loop recorder function for pattern changes and knob movements
• Individual mute buttons for each drum voice
• Configurable trigger jacks for input or output per voice
• Voltage control over pattern and randomization parameters
• External clock and reset inputs
• Dual audio outputs with voice split functionality
• Designed for creative sequencing and live performance in Eurorack systems

DIY-Kit-Type:
SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.