 The organ contains 84 ranks of pipes divided with sections in the Chancel and Gallery.The tone of the organ ranges from a very deep profound bass, with many large wooden pipes, to a very brilliant sound with 14 ranks of mixtures on the Great, [main] manual alone, containing pipes with a high tin content, adding to the overall brilliance of sound.One of the features of the choir manual [bottom keyboard] is a set of pipes made entirely of copper, named Copper Gedect.