Most celebrated Stravinsky's "Rite of Spring" was the piece that introduced odd meters and polyrhythms to unsuspecting classical audiences--also worth a listen, however you want to classify it, is Frank Zappa's "Toads of the Short Forest", in which Frank says, "On stage now, drummer A is playing in 7/8, drummer B is playing in 3/4, the organ player is in 5/8, the bass in in 3/4, and the sax player is blowing his nose."