Melchior Teschner (c. 1584–1635) was a German composer and music theorist primarily associated with the genre of sacred choral music. He is best known for his contributions to the development of hymnody in the early Baroque period. Teschner's most notable works include the hymn "Nun komm, der Heiden Heiland," which is often attributed to him, and several other chorales that became integral to Lutheran worship. Teschner's impact on music extends beyond his compositions; he was influential in the standardization of hymn tunes in Protestant liturgy. His work reflected the shift towards more accessible music for congregational singing, aligning with the Reformation's emphasis on congregational participation in worship. Teschner's harmonizations and settings of hymns contributed to the rich tradition of German choral music, paving the way for later composers like Johann Sebastian Bach, who incorporated similar elements in his own sacred works. Though not as widely recognized as some of his contemporaries, Teschner's role in shaping the musical landscape of Lutheranism and his influence on subsequent generations of composers solidify his place in music history.