Complex sentence: His signature song, though, was "The Preacher and the Bear", which he first recorded in 1905; his rendition, widely dispersed among a variety of releases, constitutes the most popular non-operatic record made during the first decade of the twentieth century.
Split into simpler sentences: His signature song was "The Preacher and the Bear", which he first recorded in 1905. His rendition, widely dispersed among a variety of releases, constitutes the most popular non-operatic record made during the first decade of the twentieth century.