Here's a video of Andy Karl singing 'Seeing You' at his and his wife, Orfeh's recent "Legally Bound" gig in New York (was tempted to put this in the Old Vic thread also but didn't want to get people's hopes up thinking there would be a West End transfer!)
While it's great to see someone other than Minchin singing it on YouTube, I'm looking more forward to the cast album with the full orchestrations and backing vocals from the company....and the whole album in general! I just hope the music orchestrations etc. won't be changed much on Broadway as I notice such a huge difference between the Matilda London (technically Stratford) and Broadway albums. The Old Vic production was perfect the way it was, just a shame a London recording wasn't made during the run.
I saw GHD 7 times so know the songs fairly well! Looks like the "If I had my time again" song has changed quite a bit from this clip. And judging by all the clips lots of changes to the chorus backing on quite a few songs.