It has been a battle going on for years: making sure that musical theatre fans know the difference between a “cast album” and a “soundtrack”. One might think this is an easy thing to sort out, but those who have devoted their lives to listening to theatre music know that “soundtrack” is used interchangeably with “cast album” to designate Broadway and Off-Broadway) musicals that have been preserved on vinyl (and CD and for download). Retailers haven’t exactly helped the situation, often bundling both soundtracks and cast albums into the same sections and bins in stores.