I think I just got deja vu - I'm now almost certain that I commented similarly in the past on this very strand/on this OST! (I might be wrong...ahh, it's all a blur
I'm currently spinning this and, after almost putting it in the "inessential" category, I fortunately heard a sample in my local record store (now THAT"S why I still love physical stores!) and it's absolutely fantastic - British 60s jazz, very mellow, similar to the early Komeda/Polanski (but sweeter) and with the flavour of Chico Hamilton (Repulsion/Sweet Smell of success...)
Highly rec'd anyway, if anyone's wavering like I was:
Sorry bout the crap mobile phone pic - for once I just couldn't be bothered to reach for the DSLR!