Dubnium is a modular digital softsynth. It allows one to connect low level modules to form more complex filters or instruments. Examples of primitive modules are "constant", "convolve", "delay", and "oscillator".

Good performance is achieved by compiling a network of modules into optimized native machine code. The compiler is written in Python. It is hard to compare performance with other systems at the current stage of development, but all tests indicate it is subjectively "pretty good".

Currently implemented are the compiler, a small but very useful set of primitive modules, and a Jack based host to run the compiled instrument. MIDI support is minimal but working on ALSA. A graphical editor using PyQt is almost complete. A functional release is imminent.

The code is available through darcs at http://unununium.org/darcs/dubnium/.