Hi waightkl,
The KB`s that you have are "arranger -KB`s ". they have auto-acomp. , styles , and you can do a certain amount of "sequencing" . Other types of KB`s would be "work-stations" [ie: "Korg-Karma"-"Yamaha -Motif " to name a few]
In most cases if a KB has "speakers" built - in then almost always it`s an "arranger" KB . But there are exceptions like the "Yamaha 9000Pro" no speakers but IMO still an arranger KB because of the above ^ reasons ,also "Yamaha" -"Tyros" will also be an arranger with optional speakers. Workstaion KB`s are great for "live and studio" work and arrangers have found a home both "on-stage ,studio and people just looking to have an "all-in-one" KB for there own enjoyment.
Anyway, "Welcome to our family. and the best corner of the web"
jedi