Here is one link I found in my Google search. Google is a friend of mine.
www (dot)kegerators (dot)com/articles/draft-beer-temperature/

Seems 38 degree F is the optimal temp. Saw no reference to diff. temps for the various secrete sauces of the various beers, ales, etc in my search. But 38 F came up a lot. And that is the same temp the brew-master (never ice cold) want you to drink their cocktails & they want you to pour the beer/ale right down the middle of the glass 'til the liquid is about 1/3 full & let it foam away - it mixes the various ingredients. And this will make even that low budget Panther **** beer taste better. Finally never drink beer our of recently soap washed glass, hot rinsed only. Al lthose bubbles you see is the beer reacting with the soap residue Now I know no one does this but try it and see if you can tell the diff. if you do - I found a difference and even made Pearl Light taste better - gotta' be from Texas to know Pearl Beer and their quiz caps. Had friends that entertained them selves all day drinking Pearl & trying to answer those quizzes.
Learned that brew-master stuff from calling on a Budweiser plant in Columbus, Ohio and that Pearl beer from great friends spending time on Lake Belton - near Ft. Hood, TX.