I remember very well one night near Philadelphia--this was back in 2002, I think--when I went to hear my brother's band (now ex-band). He was the bass player, and had just started writing songs; they did two of his, but most of the songs were by their lead singer and guitarist, a truly gifted fellow.
By this time, they had a pretty loyal following in the colleges and bars around the area. You might even call it a fan base. Anyway, they played some songs that we knew, and then closed with a new (for then) song which I had never heard before.
It was magnificent.
We couldn't help but dance. Admittedly we were an appreciative audience, but still, the reaction to this song was incredible. I've never, before or since, had such a visceral reaction to a song I had never heard before. It was all I could talk about on the way home.
I was listening to one of their CDs (the last one on which my brother played) after a Gonnas rehearsal tonight, and I remembered that moment as the song came on. That's the kind of song I would love to write; one that makes the audience love it upon the first hearing and demand more. Where is that song?