What hapened to the traditional post per prom?  I'll start a couple then.

The new commission chugged merrily along in a generic Olympic music manner - think Adams or Torke but Chinese.  Ambitious trombone writing, and the second trombonist was playing a bass trombone for some reason.  Rather a small string sound, but from subsequent pieces it must have been the orchestration's fault.

Rach/Pag does what it says on the tin.  Nice to hear the ending raise a few titters before the applause started.

I'd not heard 'Dives and Lazarus' before, although after a while I realised that I knew the tune as 'John Barleycorn' (it's also used as the bass solo in the first march in VW's Folk Son Suite).  There were a couple of times that I almost heard horns playing with the strings - I'll have to look out for a wind arrangement.

VW 6 was I think the first time this season I've heard a brass section actually try and make some noise rather than merely blend tastefully all the time, and there was great big slabs of it handed out.  I was really enjoying things until the quiet last movement proved too much of a challenge for the horde of coughing heathens.

NB

I really liked the Rachmaninov, which I've never heard before (though I know the Pagannini tune from various places, obviously). I'm not really a fan of piano concertos, the balance between a piano and an orchestra never sounds natural to me (just a personal preference). But it sounded perfect last night, perhaps the only time I can remember thinking the piano sounded like it belonged in the orchestra.