Phew.. this took a while to split.
Just as a side note: some of the tracks curiously didn't match the timings printed on the inner sleeves or the labels, but I think I've been doing good with the split job.
A8 Detective shared Oscillations 4 and 5 in the past, if I'm not mistaken (along with many other beautiful releases from "University Of Wisconsin-Extension")
Here is the 1975 compilation from UW-Extension itself, containing Oscillations 1, 2, 3, 4.
Releases are from 1972, 1973, 1974 and 1975 respectively, while the release of this comp is from 1975.
Enjoy all.
[UW-Extension] - Don Voegeli - Oscillations 123&4 (1975)music by Don Voegeliflac 24-48 encoded from the original Hrvatski's 24-96 aiff vinyl ripmega.nz/file/vQZAEbaJ#ySFwyOIiuHCU3T3fbH8WHWeoaXQfJxRo8IaODoE8IlE