Srangest ,most out there sounding music

John Cage's 4'33". The pianist walks up to the piano, sits down, opens the keyboard cover, waits 4minutes and 33 seconds, closes the keyboard ccover, and gets up and walks away. Silence is one a part of the musical material a composer uses. John just took this to the extreme.

Ornett Coleman. I listen to his stuff every so often thinking I'm going to get it, I still don't.
Sonny

Todd Rundgren "A Wizard a True Star" first time I heard "Dogfight Giggle" is a moment in time Ill never forget,,

I think this is very culturally relative. When I first heard classical music from Vietnam, Thailand, and Burma, the microtonal scales and rhythmic meters really threw me. But after repeated exposure to it, I found that it no longer seemed so strange. But man, talk about strange looks when someone walks in and hears southeast asian music playing at work. "Pat Waing: The Magic Drum Circle of Burma" on the Shanachie label is a very interesting cd of contemporary Burmese percussion music played on a 21 drum ensemble.

Most any John Cage will fit in here, but the antithesis of silence is a piece called "Solo for Voice 22, Theatre with Electronics (from Songbooks, 1970)". It is a duet of sorts that involves electronically filtered sounds of breathing and sniffing. It actually has a written score that dictates when and where motifs of irregular vs. regular breathing through mouth and/or nose are to be administered. It is hard to imagine that it was written with a clear mind.