the 1960s, many musicians have worn earplugs at concerts, and some concert promoters actually give out free earplugs.

For concerts that are held in venues not specifically designed for such events, the large amounts of electricity required for operating the amplifiers, lights, and other pieces of concert equipment are typically provided by portable diesel-powered generators - "gensets" - which are often located very close to the event. The widespread use of such generators is common both for