#1
I wanted to know what are some of the better known jazz ballads? And if you could direct me towards somewhere to listen to one that would be helpful too.
#2
I played a ballad called Body and Soul that is one of the most popular jazz standards... I'm not sure if it's always performed as a ballad, but I think it is a good amount of the time.

Also, Misty is a favorite of mine.
(Slightly outdated) Electronic and classical compositions by m'self: Check 'em out