Hailing from Uddingston, Scotland, musical maestro Patrick Doyle always has the hugest smile on his face, which makes him either the happiest guy on the planet, or someone who just really, really loves his job. Perhaps it’s both, but you can’t go a few seconds without hearing him laugh. Even over the phone you can sense the endless joy in his voice when he talks about his career, his passion and his good friend Sir Kenneth Branagh. In fact, the rare (but widely abundant on the web) photo above is one of the few times you won’t see him grinning like a kid with a key to a candy store.…