I hear the pitch too, but accept it - there are about 60 people singing and not everyone will have a perfect performance on the same day. Overall they sound very good

What impressed me a lot was the intro (of course) and the 'drummer' - he was rock solid throughout!
The recording as a whole was done well, I second the props to the sound guy

I do not work here, but the benefits are still awesome
Make your sound your own!