This is quite extensive piece of music with several theme changes, recorded probably in 1982, samples from the PPG Wave2.3/Waveterm, probably TR-808 drums, TB-303 bass. Only used some years later on a video demo tape as soundtrack for a video computer demo tape (with other songs of mine). Happy I found the video and recovered the song in 2014.
The song was later published on streming platforms by french label Alter-K.
Audio file only: