We played an outdoor gig at a firemen's festival Friday. A young guy (who is a guitarist) was running one of the rides and requested Seven Nation Army by The White Stripes before we started. We played from 8:00 - 11:00 pm and it was still light outside during our first set. About half way into our first set, I suggested playing Seven Nation Army for his request. Our drummer, who sings the song, said, "I want to wait until it's darker to play that song." I said, "Now, that is funny waiting until it's darker." We were into our second set and I suggested it again and our drummer said, "It's not dark enough yet." I said, "I did not know there was a level of darkness related to playing certain songs." Finally, I asked is it dark enough yet and did we reach the level of darkness required on the darkness and light meter to play Seven Nation Army?" We played the song and everybody loved it. Now, we have a new phrase in our band lexicon - "It's not dark enough yet to play that song!"