{"id":3568,"date":"2026-05-29T17:45:45","date_gmt":"2026-05-29T17:45:45","guid":{"rendered":"https:\/\/musicgearlife.com\/?post_type=product&#038;p=3568"},"modified":"2026-05-29T17:45:48","modified_gmt":"2026-05-29T17:45:48","slug":"martin-ma240-authentic-acoustic-sp-80-20-bluegrass-guitar-strings","status":"publish","type":"product","link":"https:\/\/musicgearlife.com\/?product=martin-ma240-authentic-acoustic-sp-80-20-bluegrass-guitar-strings","title":{"rendered":"Martin MA240 Authentic Acoustic SP 80\/20 Bluegrass Guitar Strings"},"content":{"rendered":"<p>These strings are engineered with the performer in mind and they will always stand up to rigorous practice and performance schedules. Martin starts with their highest tensile-strength core wire, then tin-plate it on all six strings for added corrosion resistance; because what you don&#8217;t see matters! When coupled with their highest quality wrap wire you get consistent true tone that you can count on song after song. Martin Authentic Acoustic Guitar Strings offer excellent tuning stability, corrosion resistance and great play ability.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Martin MA240 Authentic Acoustic SP 80\/20 Bluegrass Guitar Strings<\/p>\n","protected":false},"featured_media":3598,"template":"","meta":[],"product_brand":[],"product_cat":[168],"product_tag":[],"class_list":["post-3568","product","type-product","status-publish","has-post-thumbnail","product_cat-acoustic-guitar-strings","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Martin MA240 Authentic Acoustic SP 80\/20 Bluegrass Guitar Strings - Music Gear Life<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/musicgearlife.com\/?product=martin-ma240-authentic-acoustic-sp-80-20-bluegrass-guitar-strings\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Martin MA240 Authentic Acoustic SP 80\/20 Bluegrass Guitar Strings - Music Gear Life\" \/>\n<meta property=\"og:description\" content=\"Martin MA240 Authentic Acoustic SP 80\/20 Bluegrass Guitar Strings\" \/>\n<meta property=\"og:url\" content=\"https:\/\/musicgearlife.com\/?product=martin-ma240-authentic-acoustic-sp-80-20-bluegrass-guitar-strings\" \/>\n<meta property=\"og:site_name\" content=\"Music Gear Life\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-29T17:45:48+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/musicgearlife.com\/wp-content\/uploads\/2026\/05\/MA240.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"927\" \/>\n\t<meta property=\"og:image:height\" content=\"1080\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/musicgearlife.com\\\/?product=martin-ma240-authentic-acoustic-sp-80-20-bluegrass-guitar-strings\",\"url\":\"https:\\\/\\\/musicgearlife.com\\\/?product=martin-ma240-authentic-acoustic-sp-80-20-bluegrass-guitar-strings\",\"name\":\"Martin MA240 Authentic Acoustic SP 80\\\/20 Bluegrass Guitar Strings - Music Gear Life\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/musicgearlife.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/musicgearlife.com\\\/?product=martin-ma240-authentic-acoustic-sp-80-20-bluegrass-guitar-strings#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/musicgearlife.com\\\/?product=martin-ma240-authentic-acoustic-sp-80-20-bluegrass-guitar-strings#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/musicgearlife.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/MA240.jpg\",\"datePublished\":\"2026-05-29T17:45:45+00:00\",\"dateModified\":\"2026-05-29T17:45:48+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/musicgearlife.com\\\/?product=martin-ma240-authentic-acoustic-sp-80-20-bluegrass-guitar-strings#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/musicgearlife.com\\\/?product=martin-ma240-authentic-acoustic-sp-80-20-bluegrass-guitar-strings\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/musicgearlife.com\\\/?product=martin-ma240-authentic-acoustic-sp-80-20-bluegrass-guitar-strings#primaryimage\",\"url\":\"https:\\\/\\\/musicgearlife.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/MA240.jpg\",\"contentUrl\":\"https:\\\/\\\/musicgearlife.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/MA240.jpg\",\"width\":927,\"height\":1080},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/musicgearlife.com\\\/?product=martin-ma240-authentic-acoustic-sp-80-20-bluegrass-guitar-strings#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/musicgearlife.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"https:\\\/\\\/musicgearlife.com\\\/?page_id=24\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Martin MA240 Authentic Acoustic SP 80\\\/20 Bluegrass Guitar Strings\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/musicgearlife.com\\\/#website\",\"url\":\"https:\\\/\\\/musicgearlife.com\\\/\",\"name\":\"Music Gear Life\",\"description\":\"Music Instruments &amp; 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