Soon after his arrival in Victoria, he became organist at the old Calvary Baptist Church and soon moved to St. Andrew's Presbyterian Church as organist and choirmaster. For thirty-six years he was organist at St. John's Church. Jennings Burnett gave many notable organ recitals. He also received renown as the composer, his organ compositions having frequently met with success in competition with composers from all over the world. He was also a wonderful teacher of theory and harmony. The premiere of The British African Gavotte was given in Victoria on May 3rd, 1898.