This paper examines the generic aspect of Beethoven's Opus 5 Cello Sonatas (1796) from structuralist and post-structuralist perspectives, and explores the works from these viewpoints in order to gain insights into how the sonatas function as autonomous musical texts rather than historiographic documents of Beethoven's biography or transitional contributions in the development of the genre of the solo sonata as it was later cultivated. The insights offered by these perspectives argue for a reconsideration of the conventional notions of "work" and "text," which underscore the doctrine of work-immanence. This perspective also offers insights that have proven elusive when the works are considered primarily in the context of the historical-biographical construct of Beethoven's three style-periods. By applying the aesthetic practice of expressive doubling prevalent at the turn of the nineteenth century to Beethoven's Opus 5 Sonatas, a deeper understanding of the constellation of the duo sonatas in accompanied keyboard literature will be attained. Also, by illuminating the relational nature of meaning realized within a textual framework, this study attempts to enlarge the restricted scope of interpretation conventionally imposed on the Opus 5 sonatas.