Johann Sebastian Bach (1685–1750) shaped Western music through his mastery of counterpoint, harmonic innovation, and architectural musical form. His work spans sacred cantatas, instrumental concertos, keyboard music, and orchestral suites, establishing compositional principles that music students still study today.
Bach's approach to writing for voices reveals his deep understanding of vocal ranges and text expression. Even his instrumental transcriptions and arrangements for choir demonstrate how he conceived of musical lines as singable entities, making his music rewarding for choral directors seeking repertoire with intellectual substance and genuine vocal writing.