In continuing my proud tradition of being passive agressive:

musical (noun) – a stage, television or film production utilizing popular-style songs and dialogue to either tell a story (book musicals) and/or showcase the talents of varied performers (revues).

Book musicals have gone by many names: comic operas, operettas, opera bouffe, musical comedy, etc. Revues have their roots in vaudeville, music halls and minstrel shows.

Now granted we did talk about the soundtrack...this is pretty much false, but this is in general.