This listing is for a bundle of 3 program cards designed by RYK Modular for the Music Thing Modular Workshop System's Computer Module. The bundle contains four programs divided into three cards, including:

• B77 Tape: a two-track tape inspired audio recorder and playback engine
• 355 Pitch to Voltage: monophonic pitch analysis with integrated pitch-tracking oscillator
• 350 Vocoder: digital 14-band vocoder with onboard polyphonic 4-note chord generator
• 910 Pitched Delay: pitch-shifting delay effect