Though sound baths have become particularly fashionable in recent years, the concept of healing through sound and sonic vibrations is literally ancient history: The Greeks did it; the Egyptians did, too. Here, though, we’re focusing on the more contemporary interpretation: a combination of sound bowls with metal and crystal percussion designed to facilitate meditation and well-being. Take a dip. We update things here regularly, so if you hear something that soothes you, add it to your library.