Once you have mastered the songs in the original PDF, you can hack your VL-Tone. While the songbook doesn't cover this, knowing the internal electronics allows you to do "circuit bending."
This report details the existence, content, and digital availability of songbooks associated with the Casio VL-Tone (model VL-1). Released in 1979/1980, the VL-Tone was a pioneering synthesizer/calculator hybrid. To support users, Casio released printed songbooks containing sheet music and synthesized parameter settings. In the modern era, these physical books are rare collector's items, but scanned PDF versions are widely circulated among vintage synthesizer enthusiasts and retro-computing archives. casio vl-tone songbook pdf
The songbook writes notes as letters (C, D, E) with octave numbers. The VL-Tone keyboard is printed with these letters above the keys. Follow the linear sequence. Once you have mastered the songs in the