{"id":76511,"date":"2025-09-06T14:00:19","date_gmt":"2025-09-06T13:00:19","guid":{"rendered":"https:\/\/trevorjonesltd.co.uk\/shop\/?post_type=product&#038;p=76511"},"modified":"2025-10-17T10:53:34","modified_gmt":"2025-10-17T09:53:34","slug":"mercer-barker-gw5-euphonium-mouthpiece","status":"publish","type":"product","link":"https:\/\/trevorjonesltd.co.uk\/shop\/product\/mercer-barker-gw5-euphonium-mouthpiece\/","title":{"rendered":"Mercer &#038; Barker GW5 Euphonium Mouthpiece"},"content":{"rendered":"<h2>Mercer &amp; Barker GW5 Euphonium Mouthpiece<\/h2>\n<p>Mercer &amp; Barker GW5 Euphonium Mouthpiece<\/p>\n<p><strong>Specifications:<\/strong><\/p>\n<p>Cup: 25.70mm<br \/>\nRim: 6.85mm<br \/>\nThroat: 7.28mm<\/p>\n<p><strong>Comparisons:<\/strong><\/p>\n<p>SM5 \/ 5AL \/ DC4 \/ Schilke 52D<\/p>\n<p>Presenting our Glyn Williams range of Mouthpieces. As played by the Cory Band Solo Euphonium player this exquisite Euphonium Mouthpiece is the perfect blend of comfort, balance and weight that out performs its peers across the whole spectrum.<\/p>\n<h3 class=\"image-with-text__heading h1 rte\">About Mercer &amp; Barker<\/h3>\n<div class=\"image-with-text__text rte body\">\n<p>Mercer &amp; Barker Ltd was created as a company and launched in the Autumn of 2019 and is the brainchild of Carl Mercer and George Barker, a collaboration of two Tuba players and friends striving to design, develop and create brass instrument mouthpieces of the highest quality using the best of British precision engineering.<\/p>\n<p>\u201cI Began playing BBb Bass at the age of 13 and still playing it into my 50\u2019s. I Joined the Stacksteads Band Bacup at 16 and made my first appearance with the NYBBGB under the tutelage of Sandy Blair and sitting in the same\u2026\u201d<br \/>\nGEORGE BARKER<\/p>\n<p>\u201cI began playing the tuba with the Salvation Army band at the age of 11, in my teens I left the SA but continued to play Tuba with local bands such as Warburtons and Longridge Band\u2026\u201d<br \/>\nCARL MERCER<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>As played by the Cory Band Solo Euphonium player this exquisite Euphonium Mouthpiece is the perfect blend of comfort, balance and weight that out performs its peers across the whole spectrum.<\/p>\n","protected":false},"featured_media":76586,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[608],"product_tag":[602,819],"class_list":{"0":"post-76511","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-euphonium-mouthpieces","7":"product_tag-euphonium","8":"product_tag-mouthpiece","9":"product_shipping_class-small-item","11":"first","12":"instock","13":"taxable","14":"shipping-taxable","15":"purchasable","16":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Mercer &amp; 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