{"product_id":"proofreading-round-tuning-fork-a440hz-standard-a-tone-violin-tuning-fork-erhu-string-musical-instrument-teaching-440-ear-cleaning-tuning-fork","title":"Standard A440 Precision Steel Tuning Fork","description":"\u003cp data-path-to-node=\"1\"\u003eEstablish a perfect musical foundation with this \u003cb data-path-to-node=\"1\" data-index-in-node=\"49\"\u003eStandard A440Hz Tuning Fork\u003c\/b\u003e. This essential reference tool is precision-engineered to vibrate at exactly \u003cb data-path-to-node=\"1\" data-index-in-node=\"154\"\u003e440 vibrations per second\u003c\/b\u003e, the internationally recognized pitch standard for orchestral tuning (\u003cspan class=\"math-inline\" data-math=\"A_4\" data-index-in-node=\"250\"\u003e$A_4$\u003c\/span\u003e). Crafted from high-durability electroplated iron, it provides a clear, pure, and long-lasting tone that is unaffected by temperature changes. Whether you are tuning a violin, an erhu, or a guitar—or using it for educational sound physics demonstrations—this fork is the gold standard for acoustic accuracy.\u003c\/p\u003e\n\u003chr data-path-to-node=\"2\"\u003e\n\u003ch2 data-path-to-node=\"3\"\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"0\"\u003eKey Performance Features\u003c\/b\u003e\u003c\/h2\u003e\n\u003cul data-path-to-node=\"4\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,0,0\"\u003e\u003cb data-path-to-node=\"4,0,0\" data-index-in-node=\"0\"\u003eUniversal Pitch Reference:\u003c\/b\u003e Calibrated to A440, ensuring your instrument is perfectly in tune with pianos, digital tuners, and other ensemble members.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,1,0\"\u003e\u003cb data-path-to-node=\"4,1,0\" data-index-in-node=\"0\"\u003ePure Sine Tone:\u003c\/b\u003e Produces a clean, overtone-free sound that is much easier to tune to by ear than complex digital tones.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,2,0\"\u003e\u003cb data-path-to-node=\"4,2,0\" data-index-in-node=\"0\"\u003eRugged Electroplated Finish:\u003c\/b\u003e Features a high-quality chrome-style plating that prevents rust and corrosion, maintaining its resonance for years.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,3,0\"\u003e\u003cb data-path-to-node=\"4,3,0\" data-index-in-node=\"0\"\u003eErgonomic Round Handle:\u003c\/b\u003e Designed with a ball-end handle for a comfortable grip and optimal vibration transfer when placed against a resonant surface (like a tabletop or instrument body).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,4,0\"\u003e\u003cb data-path-to-node=\"4,4,0\" data-index-in-node=\"0\"\u003eMultifunctional Use:\u003c\/b\u003e Beyond music, it is widely used in science classrooms for acoustics lessons and in wellness practices for auditory sensory testing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"5\"\u003e\n\u003ch2 data-path-to-node=\"6\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h2\u003e\n\u003ctable data-path-to-node=\"7\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetail\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,1,0,0\"\u003e\u003cb data-path-to-node=\"7,1,0,0\" data-index-in-node=\"0\"\u003eFrequency\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,1,1,0\"\u003e\u003cspan class=\"math-inline\" data-math=\"A = 440\" data-index-in-node=\"0\"\u003e$A = 440$\u003c\/span\u003e Hz (Standard Concert Pitch)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,2,0,0\"\u003e\u003cb data-path-to-node=\"7,2,0,0\" data-index-in-node=\"0\"\u003eMaterial\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,2,1,0\"\u003eHigh-Grade Electroplated Iron\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,3,0,0\"\u003e\u003cb data-path-to-node=\"7,3,0,0\" data-index-in-node=\"0\"\u003eTotal Length\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,3,1,0\"\u003e12cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,4,0,0\"\u003e\u003cb data-path-to-node=\"7,4,0,0\" data-index-in-node=\"0\"\u003eFinish\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,4,1,0\"\u003ePolished Silver\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,5,0,0\"\u003e\u003cb data-path-to-node=\"7,5,0,0\" data-index-in-node=\"0\"\u003eDesign\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,5,1,0\"\u003eRound Ball-End Base\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr data-path-to-node=\"8\"\u003e\n\u003ch2 data-path-to-node=\"9\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003eIdeal For:\u003c\/b\u003e\u003c\/h2\u003e\n\u003cul data-path-to-node=\"10\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,0,0\"\u003e\u003cb data-path-to-node=\"10,0,0\" data-index-in-node=\"0\"\u003eClassical Musicians:\u003c\/b\u003e Tuning violins, violas, and cellos before rehearsals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,1,0\"\u003e\u003cb data-path-to-node=\"10,1,0\" data-index-in-node=\"0\"\u003eTraditional Artists:\u003c\/b\u003e A must-have for Erhu, Pipa, and other stringed instruments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,2,0\"\u003e\u003cb data-path-to-node=\"10,2,0\" data-index-in-node=\"0\"\u003eMusic Teachers:\u003c\/b\u003e An indestructible tool for teaching pitch and frequency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,3,0\"\u003e\u003cb data-path-to-node=\"10,3,0\" data-index-in-node=\"0\"\u003ePiano Tuners:\u003c\/b\u003e Using as a primary physical check for the \"A\" key.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"null","offers":[{"title":"440 \/ 440","offer_id":52852440465519,"sku":"CJYD146080201AZ","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/6847\/4735\/files\/e0e1f717-4348-4e5b-9ef3-9a70e0ccc1a1.jpg?v=1774571518","url":"https:\/\/musiciangiftshop.com\/products\/proofreading-round-tuning-fork-a440hz-standard-a-tone-violin-tuning-fork-erhu-string-musical-instrument-teaching-440-ear-cleaning-tuning-fork","provider":"Musician Gift Shop","version":"1.0","type":"link"}