Vaz 1.5 is an older version of ,the now very popular, Vaz + and Vaz Modular. This is really a shareware program, as you are not allowed to use it in any commercial composition, but that is the only restriction, Therefore if you don’t make any money from your music then you are free to use this in any composition of yours. There are two windows; the synthesizer and the sequencer. The synthesizer has various oscillators and filters, while the sequencer is very basic. There is a high latency with the midi support, but capture as .WAV works very well indeed.