Opus 40 refers to a rock sculpture park and museum in Saugerties, NY. The park consists of winding passageways of interlinking reclaimed quarry rocks. Its layout reminds me of a large wave crashing though the scenic catskill mountains. The dreamy pop sound of Mercury Rev could not have picked a better location to set one of their masterpieces. There’s just something about Mercury Rev that sounds right. They can weave sweeping synths and guitar into a psychedelic dreamworld without ever sounding to grandiose or pompous, which is often a pitfall for would be psychedelic outfits. This is far and away my favorite song about rock sculptures.