Answer:
A cantata is a form of vocal chamber music most popular during the Baroque period. It was originally associated with the Lutheran service and has since been applied to other works for chorus and orchestra.
Chorus, vocal soloists, organ, small orchestral
German religious text related to day's message (Sermen of music)
Similar to opera, but 25 minutes
Bach wrote 245 cantatas
For more information visit http://musicanappreciation.blogspot.com/2010/03/baroque-suite.html