Yes, and for the most part, that's exactly what he does. However, in order to trigger the vocal harmony processor, there must be a midi signal from the device, which is set for his left hand chords. The processor needs the chord information in order to provide the corrections for the harmony. This is also the case with an external vocal harmonizer - it requires the midi information from the keyboard's chords being played in order to function properly.

Most of today was spent teaching him to create registrations and how they function, which is one of the most difficult aspects of all arranger keyboards. The last hour was spent setting up the vocal harmony processor and teaching him how to tune it, then save the information to a special, setup registration. For the old salts on the forum, this is fairly easy, but for someone that is just getting into playing an arranger keyboard, the learning curve is pretty steep and I consider myself a fairly good teacher. I have written tutorials on creating registrations, and another guy on the PSR-Tutorial site put together an instructional video, but it is still difficult for many to comprehend.

All the best,

Gary