[Jeroen]

Thanks, I will try this workaround, but beforehand I think that is indeed not my preference.
If there is no visual indication whatsoever, so you have to think each time where to touch the screen to get the turn you want. If the normal situation is a full page and there is a colored button visible, then it is much clearer what to do.
The main thing is to interprete the music, and not thinking about what to do to go to the next page!
What to do in the case of a display mode that does not support half turns I do not know, had not thought about that! But it might be best to turn simply a whole page instead.
I never use the two page mode, cannot read that anymore!
thanks
Jeroen