Sadly, though, Dom keeps trying to make us think the MS is an arranger with workstation features, rather than the other way around. Claims that 'all other arrangers are obsolete' doesn't help him, when anyone that uses one as an arranger quickly bumps heads with the styles.
But I am definitely seeing some light at the end of the tunnel. Basically, until the MS was able to utilize GIGA voices for EVERYTHING, it was always at the mercy of his onboard sounds, and he never could afford to develop a sound set that would rival any TOTL arranger. It's a massively expensive undertaking, and few companies, even the Big3 can afford to develop a completely new sound set for ANY new keyboard. Mostly they add just a few new sounds to an already developed set, expanding, rather than innovating. Dom could never do that, he had to start from scratch, basically...
I still think Dom needs to get together with a few TOTL GIGA sound developers (maybe Scarbee and others) that have already developed mature virtual instruments, rather than go through the expense and uncertainty of developing them in-house, and license them to pre-install in the MS, and develop ALL the styles for this. Otherwise, it is still going to be a bit hit-or-miss depending on the sound.
A consistent, balanced and comprehensive sound set is the necessary foundation for style development, and one of the weaknesses of an 'open' system is that this set is not standardized for style developers to work with. It's a cart and horse thing. Can't make a good style until you've got a good sound set...
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An arranger is just a tool. What matters is what you build with it..!