Scott is right again! This is from George Crumb's Makrokosmos Volume I: Twelve Fantasy-Pieces after the Zodiac for amplified piano. The unknown is an excerpt from piece no 11, titled, Dream Images (Love-Death Music) (Gemini).
Damn, I'm good!!! Actually, I was familiar with Crumbs notation for a movement of "Ancient Voices of Children". It was played at a piano camp when I was a "couple of years younger" and in high school. I was intrigued by the circular notation and the hand writing, that the manuscript conveyed. Scott