Abstract: Given an existing piece of music, represented in any form such as midi, sound frequencies, etc, but most notably in the form of sheet music and musical scores and music-xml, methods can be applied to the existing music to create an entirely new sound. While the traditional transposition of music shifts all notes from one key signature to another and essentially produces the same melody in a different key, this method transposes all the notes of an existing composition using a totally different set of transposition rules to produce unique new music.