For this project, I commissioned and recorded five new works for contrabassclarinet from five different composers. Composition parameters were given to each composer before they started writing which detailed what needed to be included in each work. Four of the composers were asked to utilize a single, difficult aspect of playing the instrument, which included intonation, low note technique and response, phrasing, and articulation. For the fifth work, the composer was asked to incorporate all parameters of the project. Because of the differences between contrabass clarinet designs, I recorded each work three times using the Leblanc Vito, Leblanc “Paperclip”, and Selmer Model 41 contrabass clarinets to demonstrate that the works were adaptable and playable. In this paper, I will outline the parameters of the project, describe the instruments used for recording and provide a performance guide for each work. It is my hope that these works will provide an enjoyable way for future contrabass clarinetists to become more proficient performers of the instrument.