{"type":"Electronic instrument","name":"clavioline","description":"An early analogue synthesizer, it had a vacuum tube oscillator and high/low pass filtering to produce vibrato.","aliases":[],"disambiguation":"electronic keyboard, forerunner to analogue synthesizers","id":"83b8eb05-6bff-4f61-a050-bf44945a5c0a","type-id":"98df6cec-95e5-3cbc-9a2d-7ea6c8be6f3c"}