Mass in B Minor

The Mass in B minor (BWV 232) is a musical setting of the complete Latin Mass by Johann Sebastian Bach. The work was one of Bach's last, not completed until 1749, the year before his death in 1750. Much of the Mass consisted of music that Bach had composed earlier: the Kyrie and Gloria sections had been composed as a Lutheran Missa in 1733 for the Elector of Saxony at Dresden. The Sanctus dates back to 1724, and the Qui tollis movement was based on a cantata chorus dating from 1714. To complete the work, however, in the 1740s Bach composed new sections of the Credo such as Et incarnatus est. The completed Mass was his last major composition.

It was unusual for composers working in the Lutheran tradition to compose a Missa tota and Bach's motivations remain a matter of scholarly debate. The Mass was most probably never performed in totality during Bach's lifetime, and the work largely disappeared in the 18th century. Several performances in the early 19th century, however, sparked a revival both of the piece and the larger rediscovery of Bach's music. Today, it is widely hailed as one of the greatest works of all time and is frequently performed.