if the Oasys is marketed as a workstation ensnareyou and you are dissappointed in its performance in this regard then i am at a loss as to why you rate the MS. Afterall it is marketed as an arranger workstation and yet from what i have heard from the manufacturer in its promotional demos it should be in breach of the trades description act.It simply cannot be used in its curent form by any discerning musician as an arranger. I have spoken to at least 1 user of the MS who reluctantly admits its worthless as an arranger. What do you say as you have both the MS and the Wersi.