Pat Metheny has recorded "Tap", volume 20 in the ongoing
series "Book of Angels" by John Zorn. Due to be released
in May on both Nonesuch and Tzadik labels this is, at
least for me, an unexpected collaboration. Metheny however
has, in the past, worked with people like Ornette Coleman
or Steve Reich. So the avant-garde side is no uncommon
place for him.