I'm guessing that you have or maybe will have both boards Shakeel..? I have the PSR2000 and a PA80, but I had the MZ2000 for a time and was very much considering the VA7, so had things gone that way, that would have been my arranger setup. If this is what you do have for arrangers, or will have, I'd be very interested in how the setup works for you. There were a few things that I didn't like about the MZ and it was ultimately replaced by the PA80, but if I had the money, I'd have kept it. A few of the sounds didn't thrill me, but there were a few that I really really liked. There were some pretty cool features on it as well, including the synth editing capabilities. I like some of the Roland sounds I have heard in the past too..
If the MZ had a few better styles, would record all of it's internal style based songs to SMF instead of that "Casio" format, and just a hint of support from Casio itself, I might even consider a straight up trade for it with my PSR2000. The PSR has even better features in some areas, but it too has some sounds that I dislike.
AJ
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AJ