Yes, this was the the signature Marie France music a few seasons ago. She did probably dozens of programs like this. Pick a piece of vocal music and then a complimentary piece of instrumental music. Start with the instrumental and then introduce the vocals towards the end for the crescendo.I think if H and D had of stuck with Shallow and maybe added a complimentary piece of music it would have worked beautifully.
Maybe using all the music pieces was an attempt to do something different?