"MOTM is cool but a bit pricey. I bought a MOTM-440 kit, but the rest of the modules are DIY PCB's from other sources, including MFOS, Juergen Haible, Michael Ruberto, and Marc Bareille, and myself."
"This is a must have book for all CZ synth users. The book provides a fast and easy way for Casio CZ synth users to create unique Casio "CZ" sounds. See photos for the book's "sounds" index."