Throughout his life Telemann collaborated with good poets who prepared sacred texts for him, usually to be set as annual cycles for the church year. This practice enabled him to design each of his annual cycles, as a rule consisting of seventy-two cantatas for each Sunday and feast day, on the basis of a unique overall idea. Annual cycles such as Geistliches Singen und Spielen, the »Annual Cycle in the Oratorio Style« and »Musicalisches Lob Gottes« not only lend expression to the artistic program and ideas of one of the most important sacred music composers of the eighteenth century but also document his deep religiosity.