Roscoe Mitchell wrote a piece for solo viola, apparently.
It’s called “9/9/09,” and it was performed as part of an April Yoshi’s concert that featured a variety of Mitchell’s works.
The piece is quite abstract and full of what I suppose are microtones — they sound like purposefully sour notes.
I have to admit, I’m not sure I’m on the same page with the composition, so to speak. The first half sort of drifts past my ears. I’m able to get into the rhythms that appear after the midpoint — the faster tempo in the middle helps me get more into tracing the swing of the rhythm rather than trying to decode the harmonies.
That’s my amateur’s opinion, anyway. I’m sure there’s a lot I’m missing.