The maestra stands still as a statue, hardly breathing, in trancelike concentration. Except for her hands. With a few subtle, quicksilver gestures that could be mistaken for sign language, she forms a melody, deftly sculpting the air into music. She controls invisible elements around her with an almost imperceptible flick of the wrist. Her audience sits in stunned silence, spellbound.

Clara Rockmore Clara Rockmore

This is the iconic image of the theremin: a supernatural...

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