This is a very romantic scene of what seems to be a cinderella type skit of David Hyde Pierce and sorry to say an unknown lady (to me at least) singing a duet on a piano.
Yes, it's definitely Theodore and Charlotte from "The Powers That Be." I have just finished watching the entire show right here on RU-vid. PS Charlotte was Constanza Mozart in "Amadeus."
If anyone was wondering, I'm pretty sure this is the episode Charlerella from the short lived TV show "The Powers That Be" starring David Hyde Pierce as Theodore Van Horne, Joseph Gorden Levitt as his son, Pierce, and Elizabeth Berridge as his parents in laws maid, Charlotte, who falls in love with Theodore. As a bonus for any Frasier fans here, Theodore's wife, Caitlyn, is like the Maris we never saw. Watch the show, you'll see what I mean.
The beginning of this sequence starts with Theodore teaching Charlotte (or as this episode is called 'Charlerella') Euphemia Allen's 'Chopsticks'. He adds a flourish to end the piece which brings Charlerella to giddy laughter and prompts her to cover her mouth. Theodore then asks her why she covers her (mouth (unspoken)) with her (hand (unspoken)) and with a sheepish laugh replies it's because of her teeth, 'They're crooked'. Theodore then removes her hand and says that it's a beautiful smile, to which Charlerella says 'Aww....' with a wide smile, but then seriously says 'Thank you, sir'. He then asks her to call him 'Theodore'. She does so, in all seriousness, and asks him to play something else, which leads to this brief sequence from Mack David, Al Hoffman and Jerry Livingston's 'A Dream Is a Wish Your Heart Makes', from Disney's "Cinderella" (1950). Then, the clock strikes midnight and Charlotte realizes (in a panic) that Senator William Powers and his wife Margaret (who continually treats Charlotte with disdain and abuse) will soon be home and that she must have food & drink ready and get out of the dress (which she tirelessly pressed for Margaret, along with several other dresses). Theodore runs after her as she runs towards a stairwell, but she implies that she has to tend to her job, but says from the top of the stairs 'I'll never forget this evening sir. Thank you.' Theodore only memento is Charlerella's glass slipper that fell off her foot, which he seems to treasure.
Kelsey Grammer played Frasier in 'Frasier' David Hyde Pierce played Niles in 'Frasier' John Mahoney played Martin (the dad) in 'Frasier' Kelsey also was sideshow Bob in 'The Simpsons' David is Bobs brother Cecil in 'The Simpsons' and John played Bob and Cecils dad in the Simpsons
That scene really touched me. I am not a fan of romantic movies or scenes at all but this one...just beautiful... And it's more interesting because David Hyde Pierce is gay (but it didn't irritate me that much, Graham Chapman from Monty Python also did such scenes and was gay). :) DHP rules!