Now that is really a shame. It's hard to think we'll never see them up on stage again. Cosmotheka is one of the few acts that has put me in physical pain laughing at them - great stretches of being unable to draw breath with the laughing. Any festival I went to where they were onmthe bill, I'd know for sure that they'd be a highlight.
They could make you see the tragedy in a song like Burlington Berties, and the daft fuin in a song like "I'm one of the Ku-Klux-Klan".
I hope there is some kind of adequate tribute event. And I hoe that Dave manages to carry on.