The site says there's a smaller orchestra, but the recording sounds like it's larger (I can hear two reed parts at the same time, for example). I'm looking to do the show with a smaller orchestra, but I'm not sure if that's actually being licensed.

I see that the website claims this is the 2009 revised version, which is based on the 2007 Donmar revival. But, the song/cast list does not reflect that change. So, I'm curious which version you are licensing??