BMC52 Chordizer

picture of the module

This is a specialized module for controlling 1V/Octave oscillators and filters. A single CV input is offset and quantized to create 4 voice chords. Chord voicings can be saved and loaded using external CV. It also features a single slew control for all four outputs, random chord selection and more

The board features PC mounted pots for less wiring, and mounting holes for flexibility in panel layout. There are Eurorack and MOTM power connecters. It's compatible with 12V or 15V synth systems without any parts substitutions


Here is an mp3 demo showing the Quantizer-Then_Offset feature. It's hard to hear in the video demo. In the first section, the feature is inactive and in the section it is active. I'm slowly going down and then up with the input CV.

Boards are available now. Price for 1 PCB/PIC set is $18.
Unfinished eurorack panels are available for this project, they are 12HP and cost $8 each. There is more information here about panels. If you're interested in drilling your own panel for this project, feel free to use my drill guide. That image should be printed at 300dpi for proper scaling.