I wouldn't have expected much of at atmosphere last night to be honest but Saturday was a lot shitter than the last early kick off against Liverpool. Song choice is not the only thing but it does matter. The singing areas set the tone early on. Crowd psycology kicks in and people, rightly or wrongly, in the upper tiers decide "Nobody is singing aroudn me today". A few Blue Moons, Best Team in the Lands, Come on City, Hey Judes, We're not Really HEre, etc early on get everyone up for it. I'd put Rythmn is a Dancer in that category now too but it took some time. The concourse songs from the off just don't get taken up.
If you watch the United final or Madrid and Arsenal home, listen to what gets sung in those games.