The Unplayable Score. John Stump

“Faerie’s Aire and Death Waltz (from ‘A Tribute to Zdenko G. Fibich’)”, by American John Stump is a parody of a composition, meant to be impossible to play and including, in the score notations, absurd indications such as “release the penguins” and “Like a Dirigible” and “Gong duet.”.

And yet, there’s someone who actually played it. (From 3’50”)
Related:
John Stump Composer of Faeries Aire and Death Waltz
Faerie’s Aire and Death Waltz – John Stump absurd scores.