These applications provide the tools needed to program the synth which were missing when it was in production by Yamaha. The synth was discontinued after two years, probably in part due to its complexity (particularly the formant sequencing), poor front-panel controls, brief manual and limited polyphony.
These applications supply the required instruments to configure the synth which were absent when it was being manufactured by Yamaha. Consequently, the synth ceased operations after two years, primarily due to its intricacy (particularly in formant sequencing), inadequate controls, brief instructions, and limited polyphony.