Personally I think that this is a great video! It seems cousy and fine and dandy and all that!
Cozy might be a better spelling.
Otherwise, a rather fun video if a bit frustrating for reasons Bruce points out.
I certainly have played the piano at many Christmas parties (I must have all the carols and secular songs memorized), and I am amazed at what I can still do after a few too many drinks.
But the two guys at the piano? Lowell Lieberman's music -what I have heard- has always been of interest, but Del Tredici's cloyingly Romantic retread has never remotely engaged me, in fact I found Final Alice quite a trial to get through.
IMO of course, I'm sure Del Tredici speaks highly of my piano playing and compositional abilities. But for 'current' music, I'm free to look elsewhere, and some of the new music written for the Anglican Rite is far superior to anything I have heard from... well by all means.
There is a bootleg private recording somewhere of Eric Wolfgang Korngold improvising (at his hosts' behest, at a dinner party) on the piano, based on a tune from one of his movie scores. It was played on BBC Radio 3's 'Composer of the Week' program a few years ago. Unfortunately I was driving at the time (if I was at home, I could just press the 'Record' button on my DAB radio), but it sounded marvelous and he was obviously a very accomplished pianist indeed - there were lots of florid arpeggios and runs, but the tune sang out in various guises, and even developed.
Much like what another Wolfgang (Mozart) genius might have done, albeit in less Romantic fashion, to entertain royalty....