The Cathedral's main organ was built by Lewis & Co. of Brixton, and completed in 1897. Thomas Christopher Lewis, the company's founder, was renowned for building instruments that had a bright, vibrant tone which, in part, was due to his use of low wind pressures. Consequently, he was somewhat out of step with the trend at the time, which was tending towards high wind pressures and rather thicker tone. The instrument's action was, and is, electro-pneumatic with slider chests, and the main case was designed by Arthur Blomfield.