Building Techno and House rhythms on the Roland TR-909

NOTE: sorry for the scratchy audio. I didn't notice it when I recorded this at low volume. I bought my 909 in the '90s when it was at the peak of its popularity in Techno, House and Rave music. This old faithful has been to many raves and house parties back in the day, yet, amazingly, still works and more importantly, grooves like a fox on rollerblades.