{"product_id":"martin-mm13-retro-monel-acoustic-guitar-strings-medium-13-56","title":"Martin MM13 Retro Monel Acoustic Guitar Strings  Medium  13-56","description":"Retros are the original Nickel acoustic string all the way from the 1930s. Retro strings offer a uniquely mellow yet crisp sound that allows your guitar s natural tonewoods to be heard. They are crafted with Monel a solid nickel\/copper wrap wire - not nickel-plated - meaning there is no chance for defects in the plating to allow for corrosion. Martin?s proprietary wrap wire is naturally corrosion resistant and it is incredibly strong. Martin also employ s a sophisticated winding process that controls the coupling between the core and wrap wire to maximize intonation. String Gauges: 013.017.026.035.045.056 Martin s proprietary SOLID Nickel\/Copper alloy blend Provides for a reduced pick attack allowing the guitar s tone woods to be heard Offers uniquely mellow yet crisp sound. Martin Item No. 41Y19MM13 MM13 Get yours today; with the security of our many decades of experience and Sam Ash Direct efficient order processing your satisfaction is guaranteed!","brand":"Martin","offers":[{"title":"Default Title","offer_id":48343546855682,"sku":"729789552943","price":15.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0761\/8130\/7650\/files\/136541828-1.jpg?v=1787005082","url":"https:\/\/shop.quivers.com\/products\/martin-mm13-retro-monel-acoustic-guitar-strings-medium-13-56","provider":"QVRS","version":"1.0","type":"link"}