From syntorial
1. Versatile, used for a lot
2. Lower register: thin and buzzy
1. More artificial, video game like
2. (felt like there was a DX sound in there)
3. Lower register: heavy low end, useful when trying to make a heavy bass
4. Pulse lengths
1. Square, Medium, Thin
2. Thinner sounds more like saw
3. Thinner also sounds more like "8-bit"