Yamaha NP-V80 issue

Hi all,

I recently got a Yamaha Piaggero NP-V80, and I've started to learn a few pieces, using mostly the Waiting feature from the Yamaha Education Suite (Y.E.S.), which I believe is found on many other Yamaha keyboards.

I'm guessing many people here have used that feature: you select a certain MIDI song, then press the Waiting button on the keyboard, and after a few beats are sounded (which give you the tempo), the LCD will display the first key (or combination of keys) that you have to press, and will wait until you do so, at which moment everything is repeated for the next key that needs to be pressed, and so on.

Problem is, this feature only seems to work for certain MIDIs. It certainly works for all songs that are built-in, and it worked for some MIDIs that I loaded into the keyboard, but not for others. For those MIDIs in the last category, when the Waiting button is pressed, nothing happens.

Without this function, learning a piece using a MIDI rendition of it is much more difficult, you essentially have to play a few seconds of it back, pause it, then try to play everything yourself till that point, then resume playback, and so on.

I have no idea what the keyboard doesn't like about those MIDIs - has anyone else noticed/found a fix for this? Maybe they have to be somehow edited to make them work with the Waiting function? Many thanks in advance for any replies!