Figure 1. [ Note: In Figure 1 Leq PCP is the equivalent sound pressure from listening to PCPs, Leq disco is that arising from attendance at discotheques, Leq concert is that arising from attendance at pop and rock concerts and techno parties, Leq tot. music is the total Leq due to the sum of all the foregoing music exposures, Leq totM + Prf is the total Leq from music and workplace exposure]