APL/J/K is way more "operator soup-y" than Haskell, but there are pages like this http://www.jsoftware.com/jwiki/action/show/Vocabulary/AET?ac... that for the newbie followed by http://www.jsoftware.com/jwiki/NuVoc. Someone needs to make Typeclassopedia for operator soup.

For the record, I can read both standard notation music and guitar tabs. I'm fairly competent at Haskell have written APL/J/K derivative languages for a living. "Mastering reading Haskell" certainly has to do with a lack of "go to this page on the wiki/hoogle/haddock and you can read the meaning and idiomatic usage of the 95% most common operators", not a lack of conceptual grasp of anything difficult.