Buzzic is a demo-tool for creation 4K-demos music. It's main concepts are:
1) Instrument: consists of one oscillator and several effects, applied to it. Note that since instrument contains only one oscillator, if you want more complex sound, made of several oscillators, you must create several instruments and attach them to the same note sequence.
2) Sequence: well, it's just sequence of bytes, passing through instrument. Notice that sequence is not just sound notes - sequence can be used for many other instrument parameters (e.g. filter cutoff, volume).
3) Code generation: melody can be exported in form of C++ code. If you don't want to use C++, then Buzzic is not for you :) Of course, there is always a choice of rewriting C++ program in other language.