 BWV 214", for the birthday of the queen, a cantata which he used as a model for parts of his "Christmas Oratorio", namely its opening chorus.Probably in 1735 Bach performed the homage cantata "Die Freude reget sich, BWV 36b", to Johann Florens Rivinius on his appointment to the Rectorship of the university in October 1735.In 1778 Johann Adam Hiller was appointed music director and served until 1785.