Think of mellow ambient music on the low end and death metal on the high end. But the classification does not only depend on genre. A jazz album, with a brass section, may be as loud as a hard rock album, and a Mahler symphony can easily hit 120 dB. In fact, many classical musicians now wear earplugs that reduce the volume of sound without deforming it. Can you imagine what it must be like to be sitting right in front of the French horn around 100 dB in an orchestra?