Caspar Othmayr (c. 1490–1558) was a German composer and organist, significant in the development of early Protestant church music during the Reformation. His works primarily fall within the genres of sacred choral music and organ compositions. Othmayr is best known for his settings of Lutheran hymns, which played a crucial role in making church music accessible to congregations and enhancing the liturgical experience. One of his notable works is the collection "Geistliche Lieder" (Spiritual Songs), which includes settings of hymns that reflect the theological principles of the Reformation. His compositions often utilize a straightforward melodic style that emphasizes clarity and congregational participation. Othmayr's impact on music lies in his contributions to the early Protestant repertoire and his influence on subsequent generations of composers, particularly in the realm of hymnody. As a pioneer in integrating theological themes with musical expression, his works helped shape the sound of Protestant worship and laid the groundwork for future developments in choral and congregational music. His legacy is reflected in the enduring popularity of hymn singing in Protestant traditions today.