The latest two videos are "Playing with Sound and Digital Paint" and "Future Cars".
"Playing with Sound and Digital Paint" is another abstract with a soundtrack. I create these type of soundtracks with a mixture of real instruments, midi sounds and effects created in "Audacity" (great freeware!). The digital paint effects have been processed through a whole long list of softwares, most of them freeware.
"Future Cars" is inspired by William Gibson's short story "The Gernsback Continuum". If you're not familiar with the story, perhaps this search will help. Google web search for "Gernsback continuum"