In my experience, there are enormous differences between popular and classical music concerts. Popular music concerts depend on a (perceived or real) direct, personal connection between the performer(s) and the audience members, and among the audience members - a sense of common, group experience. I believe this feeling far outweighs the choice of programming and has more to do with performer charisma and image, atmosphere, and complex sociological stuff like group identification (demographics), (implicit) political/philosophical climate, etc. Incidentally, I think if one fully understood this difference, one would go a long way toward understanding the apparent decline in popularity of classical music. Richard Tsuyuki