The slow-fast combo is so common that it has given rise to the expression "same old song and dance." My mother used that expression a lot to refer to politician's rhetoric. I never knew where it came from until I bought a gypsy LP which offered "Romanian song and dance", "Bulgarian song and dance", etc. Each piece started out with a slow, soulful song followed by a fast dance.

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Q. "it's a rock song. Then why would you ask on a folk/blues message baord?"

A. nyah-nyah nyah-nyah nyaaaah nyah!