Available as an assembled Module and as a DIY project.
This Module is currently available.
Fully featured Analog Drum Machine
Rhythmatic is a fully featured analog drum machine with six selected analog drum voices derived from the classic CR-78. The available voices are Bass Drum, Snare Drum, Low Conga, Rim Shot, Hi-Hat and Cymbal. It expands on the original by offering adjustable tune and decay controls for the bass drum and snare drum, plus decay control for the cymbal.
The built in sequencer offers 64 programmable drum patterns, up to 16 steps in length. Each drum voice can have its own sequence length, making it possible to create polymetric sequences. Rhythmatic comes with 64 pre-programmed patterns, so you don’t have to make your own to get started. The factory patterns contain many of the original CR-78 patterns plus pattern banks created by Sebsongs Modular, Konstantine and Salkinitzor.
A key feature of Rhythmatic is the big knob in the top center. This knob controls a random parameter, which either adds or subtracts steps from the pre-programmed patterns. If you want a more busy pattern, turn the knob clockwise, and if you want a more sparse pattern, turn it the other way. This parameter is a lot of fun for performing live and adding some extra random fills on the fly. Holding the shift button turns the random knob into a 4 bar loop recorder, which will record pattern changes and movement on the random knob.
Rhythmatic also features mute buttons for each of the voices, adding to the performance aspect of the module. Underneath the buttons there are also a jack for each of the voices, and these jacks can be configured to either be external trigger inputs for the drum voices, or trigger outputs from the built in sequencer. Each jack can be individually set to be an input or an output.
External clock and reset inputs are available and the pattern and random parameters can be voltage controlled. Audio output A contains the full mix of all 6 voices. Inserting a patch cable to output B splits the voices in half between the two outputs. All in all Rhythmatic offers classic sounds and rhythms, programmability and live performance features that make it a unique addition to the Eurorack drum module market.
Available as DIY kit and assembled module at Thonk!
DIY KIT: https://www.thonk.co.uk/shop/sebsongs-rhythmatic-kit/
ASSEMBLED: https://www.thonk.co.uk/shop/sebsongs-rhythmatic-assembled/
Price listed here is for the DIY kit excluding VAT.
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