My good friend Luke Sardello, whom I still think is the greatest DJ I know (and one of the primary people that inspired me to get into this whole culture) with the best collection of all good music in the world posted this old tape of dmay mixing on WJLB on his soundcloud page. Side A is full of unreleased rhythim is rhythim and then mayday goes disco on side B. Redic mix everyone should check out!
https://soundcloud.com/lukesardello/sets/derrick-may-wjlb-1988 minto