{"product_id":"complete-harmony-matrix-poster-studio-diatonic-music-theory-reference-ps-0674","title":"Complete Harmony Matrix Poster, Studio Diatonic Music Theory Reference","description":"\u003cp\u003eThe Complete Harmony Matrix provides an essential visual reference designed for songwriters, producers, and musicians. This comprehensive chart maps all twelve musical keys alongside their seven diatonic chord qualities, from I through vii°. Musicians can quickly identify key signatures, trace relative minors, and explore six foundational chord progression formulas without interrupting their creative workflow. Whether writing on piano or tracking rhythm guitar, it simplifies complex music theory into clear, actionable studio insights. Printed to order on thick matte paper with fade-resistant inks, this print maintains crisp legibility and rich contrast under bright studio lights. The glare-free surface allows effortless reading from across your recording desk. It arrives unframed, allowing you to select your own display frame, and fits standard frames in 8x12, 12x18, 16x24 and 24x36 inch sizes. This reference chart fits naturally on the walls of home recording spaces, rehearsal studios, control rooms, and music classrooms. It serves as a thoughtful gift for composers, audio engineers, guitarists, pianists, and music theory educators seeking to enrich their workspace with practical artistry. Printed on demand with archival inks on matte paper. Frame is not included.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCHART DETAILS:\u003c\/strong\u003e Displays all 12 keys with diatonic chord qualities from I to vii°, key signatures, relative minor keys, and six universal songwriting chord formulas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePRINT QUALITY:\u003c\/strong\u003e Produced to order on thick matte archival paper using pigment-rich fade-resistant inks for sharp, high-contrast legibility across every chord chart grid.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSIZE OPTIONS:\u003c\/strong\u003e Arrives unframed to easily fit standard store-bought frames, available in versatile 8x12, 12x18, 16x24, and 24x36 inch dimensions for studio or classroom walls.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Vibe Cozy","offers":[{"title":"8x12 in","offer_id":48081554047153,"sku":"LTT-PST-231026-PS0674-8X12","price":14.99,"currency_code":"USD","in_stock":true},{"title":"12x18 in","offer_id":48081554079921,"sku":"LTT-PST-231026-PS0674-12X18","price":24.99,"currency_code":"USD","in_stock":true},{"title":"16x24 in","offer_id":48081554276529,"sku":"LTT-PST-231026-PS0674-16X24","price":29.99,"currency_code":"USD","in_stock":true},{"title":"24x36 in","offer_id":48081554309297,"sku":"LTT-PST-231026-PS0674-24X36","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0577\/5147\/0257\/files\/front-hero_37f476f5-0588-46db-af29-065e4ae5b61f.jpg?v=1792733058","url":"https:\/\/vibecozy.com\/products\/complete-harmony-matrix-poster-studio-diatonic-music-theory-reference-ps-0674","provider":"Vibe Cozy","version":"1.0","type":"link"}