A combination of the 'Cover Tools', which automatically re-voices a style or SMF to different sound genre's, then a fine-tuning with the Makeup Tools to detail edit the new style, and you can make up brand new-sounding styles faster than most other arrangers can load up a new one!
So few 'try-ers' get past struggling with the live playing OS and sounds that they often miss probably the best OS feature in the whole arranger. For all Yamaha's user-friendliness in actual operation, I have to say that the way they make you create new styles, and edit them is about as counter-intuitive and complicated as I have ever seen, and the plethora of third party essential software bears this out.
Other than Yamaha Mega tracks, and the Ketron 'live loops', just about any style conversion is easily tweaked into something you are proud to play with, at a fraction of the time and head-scratching the rest force you into.
In fact, this is such a good feature, I wouldn't be at all surprised if Roland dropped it...
It is their ultimate compliment to any unique feature they have developed that no-one else copies!