28.11.2026

Slopfest #20 · Autumn 1949 · Vienna

The Zither Would Not Stop

One man, one zither, one tune, eleven hours. Quantity over quality, in its purest form.

#20Photographer forgot to remove the lens cap. Twice.
Postcard back, handwritten in ink: 'Hour nine. He is still playing the zither. SLOPFEST #20', a Riesenrad stamp and a coffee stain

Museum status: Declared a national treasure by the committee, unanimously, of one.

Venue
Riesenrad, all gondolas, all night
Attendance
204
Guest of honour
Anton Karas (played the zither for eleven hours because nobody told him to stop)
Fun fact
11 hours, 1 tune, 0 requests honored

What happened

Anton Karas agreed to play the zither for the evening, and the committee neglected to tell him when to stop. He played the same theme for eleven hours while the Riesenrad went round and round. Neighbors complained for the first two hours and hummed along for the next nine. It became the first Slopfest anthem, and is still the only one anyone can play.

“Too much of a good thing can be wonderful.”

— attributed to Mae West

Elsewhere in 1949

The Third Man, filmed in Vienna, is released, with Anton Karas's zither theme and a famous scene on the Riesenrad.

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