I'm still working through exploring all of the functions of my new Yamaha DGX640. Everything is working as explained in the accompanying DVD except the "Harmony" button. Frankly, I don't detect any difference in sound between this button being on or not. But in the DVD video (https://www.youtube.com/watch?v=OwQ-6ujYlnw) there is a distinct difference. (Note that "Harmony" IS lit in the LCD when it's on.)

However, when I activate the "Dual" button next to the "Harmony" button, I DO hear two voices.

Is there something I'm omitting when trying out the "Harmony" feature? Perhaps another setting somewhere that needs to be activated/de-activated or adjusted? (I get the feeling that I'm doing something wrong or omitting a step, because everything else on the instrument works so far.)

Any help with a step-by-step procedure to get this to work would be greatly appreciated! Thanks.

Bert


Kawai VPC1 MIDI Controller; Asus A53E Laptop running Windows 7 - 64 bit; BIAB 2017 UltraPlusPak (upgraded from 2014 EverythingPak), running from Laptop's Hard Drive.