Recently, 100 car owners had their cars turned into instruments in an unconventional orchestra.

For the Red Bull Music Academy (RBMA) Festival in Los Angeles, world-famous artist Ryoji Ikeda arranged 100 cars to play note ‘A’ sounds for his long-running installation series A [For 100 Cars], creating the world’s largest synth orchestra.

A [For 100 Cars] premiered on the roof of a parking lot in downtown L.A on October 15, showcasing the various frequencies before 440 Hz became the internationally accepted standard pitch frequency in 1955.

Each car used in the automotive musical composition had its sound system attached to a portable sine wave synthesizer developed by Ikeda, along with RBMA’s Tatsuya Takahashi and Berlin-based firm E-RM Erfindungsbüro.

Each device was preset to a specific frequency with the car owners inside the car twisting the device’s knobs according to the synth orchestra’s score.

Ikeda prepared 100 different scores for all 100 car owners with timestamps that would instruct each to either honk their adjust the volume, honk the horn, flash the car lights, or even change the octave blaring from the car’s sound system.

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