I'll vote Transform to because the description of the Instrumentation intrigued me.
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For next round:
I'd like to nominate AMM's AMMMusic. The first release from what might possibly be the first ever noise band. They never rehearsed, never spoke to each other, and that was including during performances. There was no preparation, no planning, simply music. Instruments range from everything from prepared piano, to violin, to transistor radios, to household items. If anything is the epitome of what Avant-garde stands for as a concept it's AMMMusic.
Not only that, there's a certain very compelling dramatic effect to the way AMM puts things together(or falls into place, rather). It's some of the most unnerving, eerie music I've heard in my life, and the way it just transitions from phase to phase so smoothly brings deeper into it's own dark atmosphere.