Employing a Schenkerian approach, my presentation explores intricate tonal structures in Schubert's String Quartet in D minor D. 810, focusing on a contradiction between design and structure in the Finale's coda. This dichotomy in the coda is symptomatic of the manifold ways Schubert's music departs from traditional Classical and Romantic norms, expanding the harmonic, melodic, and textural language through unconventional voice leading. My analysis of Schubert's String Quartet explores how all of these techniques are purposed to greatly expand the original narrative of Death and the Maiden in the song to evoke much broader themes of the Dance of Death and also the Four Horsemen of the Apocalypse, as described in the Book of Revelation, demonstrating Schubert's masterful evocation of complex eschatological discourses.