nice! this is my favorite Cage work
and this is something that i highly recommend to everyone regardless of whether or not it should necessarily be labeled "avant-garde":
the common label Cilio gets ("minimalism") is totally wrong imo (which i could explain if anyone disagrees), and he has pretty much no parallel, so despite his music's tonality, i'd call it avant-garde. whatever you categorize it as, it's beautiful stuff.
for completely off-the-deep-end shit this is my favorite:
(great article: http://surround.noquam.com/nature-and-culture/)