Soh Kam Yung"Shigeichi Negishi [...] was singing to himself at work one day in 1967 when an employee jokingly told him he was out of tune. Figuring that singing along to music would help him stay on pitch, Negishi began thinking about how to make that possible. He had the idea to turn one of the 8-track tape decks his company manufactured into what is now known as the karaoke machine."
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