Concert crowds can stay harmonious by practicing courtesies

Some guidelines on how to behave at a general admission concert over 90 decibels:On talking: We're all here to listen to music, so the nightclub whisper -- leaning over to speak directly into someone's ear -- is the best and only way to do it. If your voice can be heard over the music by anyone other than the person you're speaking to, save it for between songs. And group conversations are pointless and rude. During a performance, the only person allowed to speak to more than one person at once ...