{"product_id":"martin-era-treated-acoustic-phosphor-bronze-medium-13-56-guitar-strings","title":"Martin Era Treated Acoustic Phosphor Bronze Medium 13-56 Guitar Strings","description":"\u003cp\u003eEngineered for exceptional tone and effortless playability, Martin Era™ strings raise the bar for phosphor bronze acoustic guitar strings. Drawing from Martin’s most advanced string technologies, they incorporate a patented Lifespan® treatment for long-lasting corrosion resistance, Flexible Core construction for improved comfort and smooth fretability, and silk-wrapped ball ends that pay tribute to vintage instruments while honoring Martin’s rich heritage of handcrafted string making. The Artist Light gauge, created in partnership with six-time GRAMMY® winner Jason Isbell, features a traditional SP® core designed to capture the response and character of his signature sound.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGauge and Tension\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e E          B         G         D       A          E     Tension\u003c\/p\u003e\n\u003cp\u003e.013    .017    .026    .035    .045    .056    190.40\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Martin \u0026 Co.","offers":[{"title":"Default Title","offer_id":51429555667261,"sku":"41Y25MP550T","price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0883\/3348\/4349\/files\/MP550T-1.jpg?v=1772478160","url":"https:\/\/theacousticshoppe.com\/products\/martin-era-treated-acoustic-phosphor-bronze-medium-13-56-guitar-strings","provider":"The Acoustic Shoppe","version":"1.0","type":"link"}