Of course I understand the concept...it's been discussed here several times.

You obviously did not make your point clear enough in your description of a workstation...it's become a very "general" term...I remember people referring to Yamaha's little Q-series as "workstations", or "walkstations" as they were sometimes affectionately called.

Yamaha's arranger editing seems to work just fine for it's intended user market, which is primarily the home/amateur...most arranger users, including Korg and Roland, do not edit sounds drastically, or build them from scratch.

Most are content to download new sounds from more experienced users...or, they don't use it at all...Squeak's succinct explanation says it all for me.

There are some that want further detailed editing on their arranger...they can buy a Korg.

The Oasys is a fine instrument...I'm glad you are as happy with it, as I am with my arranger.