So, I started listening to him, is there a flowchart or something for his music? Can't find one.

I bought The True Discoveries Of Witches And Demons, it really works with me because I'm a rock guy, and the hard rock thing mixed with insane amounts of improvisation and jazz is really something indeed. But that's an album that's almost not even talked about, isn't it? What albums of his should I listen to next, if I'm mainly into rock and IDM/electronica type stuff? Clearly, he dabbles with a bunch of genres, and seems to really know his stuff in regards to composing pieces that are both complex and appealing (one might even say "pop").

So, can you guys point me in the right direction in regards to Zorn? He seems like a pretty cool guy, and I'd like to get to know more of his music, but his discography is ridiculously large.