Section 18 OPTICAL, PHOTOGRAPHIC, CINEMATOGRAPHIC, MEASURING, CHECKING, PRECISION, MEDICAL OR SURGICAL INSTRUMENTS AND APPARATUS; CLOCKS AND WATCHES; MUSICAL INSTRUMENTS; PARTS AND ACCESSORIES THEREOF 92 MUSICAL INSTRUMENTS; PARTS AND ACCESSORIES OF SUCH ARTICLES 92 09 INSTRUMENTS; METRONOMES, TUNING FORKS AND PITCH PIPES OF ALL KINDS. 92 09 91 PARTS AND ACCESSORIES FOR PIANOS Commodity Code Description 92 09 91 00 PARTS AND ACCESSORIES FOR PIANOS