The German phrase in Frasier's (long) theme song, attributed to Sigmund Freud is, "Himmel, vas los ist?". That means, literally, "Heaven, what loose is?", or in English, perhaps, "Dear God, what have I started?" (it's important to remember that Freud's theories provided groundbreaking insights into the nature of the human psyche).
Goof: When Martin first shares his suggestion for the theme song, he says that he came up with it while brushing his teeth. Later, he says that it was when he was flossing.
After all the trouble Frasier went to to create a jingle (and all the urgency implied by Kenny), we never hear the jingle in any subsequent programs. It's possible that it is used but only heard by the radio audience, but not likely, since Frasier would also have to hear the jingle in order to time his introduction.
Frasier allows Roz's boyfriend to play triangle with the orchestra, saying, "...our triangle player called in with a touch of tinnitus". For those who don't know, "tinnitus" is the clinical term for "ringing in the ears".
(Gil Chesterton has found a theme song for his show.)
Gil: My first choice was "Food, Glorious Food" from the show Oliver.
Frasier: Oh, that's a perfect match. Haute cuisine and a chorus of starving orphans.
Niles: Do we really have to use so many musicians?
Frasier: For the sound I want, yes.
Niles: Whatever happened to the concept of "less is more"?
Frasier: Ah, but if less is more, just think of how much more "more" will be.
Daphne: (Referring to Frasier's song) It was like Gilbert and Sullivan, but more frightening.
This is the only episode where Kenny calls Frasier "Frasier" rather than "Doc."
A Bridge Too Far; One of the title scene cards bears the title of Cornelius Ryan's classic World War II book and Richard Attenborough's 1977 film based on it. Both works deal with the ill-fated allied attempt to seize and hold three bridges in Holland in order to create a "back door" into Germany. The reference here, of course, refers to "bridge" in the musical sense of a transition in a score and that Frasier kept reaching for that something extra, just like the allied generals attempted to go "a bridge too far."
The title is a clear reference to the Broadway musical They're Playing Our Song.