Entanglement for clarinet trio by Roger Zare

Entanglement was commissioned by Chaos Incarne Trio: Adella Carlson, Julianna Pierdomenico, and Taylor Stirm. This performance by Chaos Incarne is from Schaffel Recital Hall at Appalachian State University on September 16, 2024.
Quantum entanglement is one of the most mysterious characteristics of matter in our universe. In a nutshell, it means that when two particles become entangled, the aspects of one particle is connected to the aspects of the other particle, no matter how far apart they are from each other. For example, one particle may be spinning at +1 while entangled to a particle spinning at -1. The sum of these spins is always going to be zero. Even if they are on opposite sides of the solar system, changing one particle's spin will instantly change the other's to compensate. This has been experimentally proven to happen (though not at this scale yet as far as I know...), and the entangled properties travel faster than light, which we thought was the absolute speed limit of information in our universe. Einstein famously called this phenomenon "spooky action at a distance."
This piece imagines that the clarinet trio exists in quantum entanglement with each other. The musical ideas of this piece are focused on rapid unison passages and tight imitation between all three musicians. As it gets going, the pitches of the unison passages begin to split apart into quarter tones and the bass clarinet increasingly plays wild-sounding spectral multiphonics, creating otherworldly sonic effects and surprising harmonies. Halfway through the piece, the two soprano clarinetists move away from each other physically while the virtuosic texture continues to be just as complex and interlocked, completing the musical analogy of quantum entanglement.
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