I like the way everything sounds. R. Murray Schafer, in The Soundscape: Our Sonic Environment and the Tuning of the World (O’Neill Library ML3805 .S3 1994) relates how he would customarily have everyone in his class meditate, and then afterwards, when relaxed, hum together a note of “prime unity” and they always converged on the same note, roughly B. He was invited to teach in Germany one year and had his class there do the same, but they converged on a different, lower note, closer to G. It turned out the note of prime unity was just a reflection of the electrical system’s frequency; Germany is 50 Hz, and the US 60 Hz. Students were unconsciously reproducing the note of the faint buzz of the fluorescent lights. Me, I especially love the clicks and hum of the automatic lights turning on in the stacks, because it means someone’s in hot pursuit of knowledge.