At first glance, it seems like a stunt: 50 pianos and pianists, plus 25 other instrumentalists, all arranged in a circle around the perimeter of the vast Drill Hall of the Park Avenue Armory in New York City. They were there to perform 11,000 Strings, a 66 minute composition by Georg Friedrich Haas, commissioned and performed by the Austrian new music ensemble Klangforum Wien. Performances began September 30 and run through October 7, 2025 (I attended on October 2).

At the onset, I was ready to condemn this work as B.S., a party trick, but it’s definitely more than that. Each of the 50 pianos were tuned differently from one another, in 50 steps of microtones. The carefully constructed piece began quietly, on a major chord. One would think it would be difficult to create dynamics any softer than forte, but this performance exhibited a great range of dynamic and timbral nuances.

Almost from the start I recognized that this was a visceral experience for me, similar to the way out-of-tune chords can sometimes invoke a queasy feeling. But this was not nausea. Instead, it was a pleasant vibration deep in my chest, bringing a sense of anticipation and occasionally excitement.

The overall aural effect was cinematic and evoked visual images like a swarm of cicadas, the spookiness of a horror film, mysterious anticipation and thunderous cacophony. As the piece wore on, I caught a glimpse of the digital readout in front of one of the pianists: 21:38. I was discouraged to realize that it indicated 21 minutes elapsed, therefore 45 more to go. At that moment, I was ready for a coda, a fermata and a big finish.

The fact that the Armory could create so much buzz around this avant-garde novelty piece and attract thousands to come experience it is impressive. It does seem like a lot of effort for an hour of music. You won’t leave the venue humming a tune, that’s for sure. But the molecules in your body may be permanently rearranged.