Looking to learn 6 or so standards. 1) I'm mainly a rock player who wants his rock playing and writing to be more interesting. 2) So I'm more interested in some outside playing and 'different' standards than, say, the classics like The Way You Look Tonight. 3) A secondary goal would be that I have a couple of tunes to call if I ever sit in with the local jazzers. I know some standards and have played some jazz, but not steadily for years. Recommend me a couple of good tunes to work on for the next few months.