In November 2022, Tom Lehrer released all of his musical work into the public domain. This included sheet music and lyrics, often with his own private notes, from across his entire musical career. This material came with a warning that the website that hosted these files would be shortly taken down. In an effort to preserve this material and to make it accessible to all, this volume compiles all of the original sheet music and lyrics in their as-released, unmodified form.