 Bach's early biographers (his son Carl Philipp Emanuel and Johann Friedrich Agricola in the "Nekrolog" and Forkel in his ) gave little or no attention to individual cantatas, and confined themselves to mentioning that Bach had composed five complete cycles of church cantatas.Scholarship later indicated the chorale cantata cycle as Bach's second cycle of church cantatas.The performance parts of 44 chorale cantatas were about all that was left of Bach's music in the St.Thomas church by 1830.