I used to own this album in 1977 (the year it was released) but had to sell it to Moby Disc for money for some reason I totally forgot. Nevertheless, it has been in the back of my mind for 35 years of so. As I was taking one of my strolls down Glendale Blvd, I found a copy at Mono Records. A great record store. The best thing about a record store is when you go in to look for a specific album, and you find something else instead. And usually something much better than the other record you're looking for. The above John Cage album fits that category. Prepared Piano pieces on a double album, and on the great Tomato Records label. Beautifully mediative as well as intense. How does two work together is sort of like enjoying a Tom & Jerry cartoon. You need the violence, as well as the pairing of the duo.