On the KETRON products (and I believe the Roland G70 has a similar feature), there is a function called RETRIGGER (Arranger MODE). You can set which parts (Bass, chords ...etc) should be triggered/played INSTANTLY (i.e regardless of when you press a chord - RETRIGGER CHECKED) or on the down-beat/delay - RETRIGGER unCHECKED). This setting can then be saved GLOBALY or within each style.
For a better 'breathable' & natural style arrangement/configuration, the keyboards ship with the RETRIGGER set to off/unCHECKED.
Thanks
AJ