Karl Reinthaler (1822–1896) was an Austrian composer, conductor, and music educator known primarily for his contributions to choral and orchestral music. Often associated with the Romantic era, Reinthaler's works are characterized by their melodic richness and harmonic complexity, reflecting the broader musical trends of his time. One of his notable compositions is the "Missa Solemnis in D," which showcases his adeptness in sacred music. He also composed a variety of choral pieces, songs, and orchestral works that gained popularity in religious and concert settings. Reinthaler served as a conductor for various choirs and orchestras, and he was influential in promoting choral music in Austria. Though not as widely recognized as some of his contemporaries, Reinthaler's impact on the development of choral music in Austria is significant. He nurtured a generation of musicians and contributed to the rich tapestry of 19th-century Austrian musical life. His work laid foundational elements for future composers in the genre, particularly in the realm of liturgical music, emphasizing the importance of choral traditions that continue to resonate today.