Karlheinz Stockhausen "Helicopter String Quartet"
Why the open web links it
A performance of Stockhausen's avant-garde 'Helicopter String Quartet,' where players perform in separate helicopters.
Linked by 23 independent sites, 3 of them widely read in the 2026-10 crawl of the open web, including globo.com, yorku.ca, kent.ac.uk, futilitycloset.com, therestisnoise.com.