Hi Peter, much appreciate your help. I've looked to the style: it is indeed an reworked style from the Genos. It comes from Dusan-Ballroom-Slow_Waltz. The registration is a copy of the OTS from that style. The OTS therefore is also 'blanked'. (not ment as any critique on Dusan's work!, on the contrary)
I have some programs from PSRTutorial: Yamaha Register Manager (YRM 5.1), PSR Style Database, PadMaker and MixMaster. But I haven't seen yet the programm you are using: OTS-editor. It seems that this could clarify some of these things. I will search for that one, or maybe you can give me a hint
I don't much care about the missings voices, but I'm more interested (as a learning curve) how it comes and how to deal with it/ or to repair or examen the voices.
As I wrote, thanks a lot Peter.
PS. Found the OTS-editor on Jorgen Sorensen's site. Will study that programm.
PS2. That is exactly the style I talked about. You have a lot knowledge about this stuff, Peter. 'Petje af (Take my hat off)'