You want the quality of styles of the Ketron Event, without going to the effort of buying that keyboard.
Sorry, you won't be able to use shortcut on this.
There is not a magic formula to get the best, fast and easy with "converters".
The technology that the Event styles have differs a lot from Yamaha's technology, in this case of the Event they are audio loops (not midi data) streaming in real time for each of the 5 audio channels it has, and each one of these channels (guitar for example) were recorded in each of the possible chords, major, minor, diminished etc.
Did you think it would be that easy?
I'm sorry, but keep dreaming.