Vladimir Ussachevsky's Piece for tape recorders

This piece was created just four years after Sonic Contours, but there's still what sounds like a massive leap in technology (maybe Ussachevsky just understood the technology better?) It's done in the musique concrete style, meaning it uses sounds borrowed from different places to create music. To be honest, I had no idea what most of these sounds were because they were altered so much that it was impossible to tell, except for the piano. There's something that could be some sort of gong, but I'm not sure, and something that sounds a little like accordion, too. I'm also curious about the booming, it sounds a little like a jet engine. There's also a sound about halfway through that seems like wind howling but could easily be something else.

The piano line is fun and kind of wild, because it's sped up to the point that it almost doesn't sound like a piano anymore. It's kind of cute and playful. Other than that line, though, I'm not even sure I'd call this music, it's just so out there. It doesn't have a real melody or any sort of rhythmic regularity. I might just consider this experiments with sound.