This sub-series is devoted to William Klenz's organ music compositions. The files within this sub-series highlights Klenz's significant contributions, including Sonata for piano and organ.

This sub-series compiles files of choral music exclusively arranged and transcribed by Klenz and featuring works in English and French languages.

This subseries offers a collection of William Klenz's cello musical compositions, with a major emphasis on the Sonata as a central piece, expertly utilized in numerous cello compositions. Notably, Klenz demonstrates his musical versatility by extending the use of the Sonata form to solo instruments such as Piano and Violin within this subseries.

This sub-series is devoted to William Klenz's organ music compositions. The files within this sub-series highlights Klenz's significant contributions, including Sonata for piano and organ.

This sub-series is devoted to William Klenz's organ music compositions. The files within this sub-series highlights Klenz's significant contributions, including Sonata for piano and organ.