Thing is Dan, first things first. You make a software arranger, but no styles. Therefore, you are playing Yamaha, Ketron and whatever else styles that it is compatible with. I don't know if you have spent much time on any of the latest arrangers (although they have been WAY past the GM soundset for over ten years), but these styles don't just use ONE piano, or one bass, or one Rhodes, etc. They have dozens of them, as different as chalk and cheese. What works with one style doesn't work for another.

If you think about it, this is like expecting a 50's Latin band to use the exact same instruments as a 90's rock band! Not just a piano, drums, percussion and bass and guitar, but the SAME piano, bass, drums and guitar. But in reality, they wouldn't have one thing in common. Musical instruments in the real world have evolved over the years. In fact even the lowly Rhodes came in several different varieties, all quite different from each other. Guitarists play Strats, Tele's, Gibson's (Les Paul's and 335's) PRS's and a myriad others, none sounding alike.

I kind of shudder at the thought of an arranger with such a limited palette, even if those few sounds are quite excellent. The idea sounds OK, until you think that, that's ALL you are going to have. To cover everything from 20's jazz to 90's smooth rock, to 21st century electronica... It just can't be done. If it could, don't you think the majors would have only 128 sounds, but they all be GREAT?

The styles are going to call up thousands of different sounds, but you are going to try to play them ALL with the same few?

This is what sank the MS. Be careful navigating the same waters...