Boredoms - Pop Tatari (1992)
Brilliant Japanese noise rock. Not as accessible as their later works but still just as interesting. It's awesome to see how they morphed over the last decade.
Terry Riley - In C (1964)
Forty-five minutes of brilliant musical phrases, all in the key of C. It's impressive to note the beautiful compositions there are in minimalist music. This is the Bang on a Can version, but there are others recorded including one by Acid Mothers Temple.
Kayo Dot - Choirs of the Eye (2002)
In my opinion the best KD record out there. A great merger of avant-garde metal with a distinct progressive mentality. Lots of space in this album but it's jam-packed with distinct songs as well.
Return to Forever - Hymn of the Seventh Galaxy (1973)
Jazz fusion has the capacity to be fantastic or horribly outdated, and thankfully, this is the former. This album doesn't feature Al di Meola on guitar but is nonetheless provocative in its complexity. For fans of early Mahavishnu Orchestra.