Oh no! True titan for so many years, a radical at the forefront of European, and worldwide, music for nearly 60 years. He leaves such a broad discography.
Like @RabshakehI was privileged to see him at Oto a few months ago. He played with great depth and verve. The subsequent announcement of his illness didn't really equate with that concert experience. The Tentet+1 Oto concert is still one of the most memorable I have attended. He was a good friend of Oto and visited regularly.
Once at Oto I grabbed a quick word with him and he was so self-deprecating about what he'd just played.
Let's also not forget his graphic art.