I have to admit being of two minds about the prospect of a musical episode of "Murdoch Mysteries"--frankly, it wasn't something I had ever imagined watching in the seventeen seasons that I have been following the series. Having seen it tonight, however, it is clear to me that "Why Is Everybody Singing?" is one of the cleverest and best executed ones the production team have ever put together. It was a wise decision on their part to frame the musical numbers within a fairly standard mystery plot rather than creating an all-singing-all-dancing episode; that said, all the main characters--as well as one returning guest villain!--had an opportunity to display their talents in a way that fans of the show won't soon forget.