Paul you make me laugh so much my sides ache!
Having a Groovebox does not in any way make you a musician and what ever was flowing out your head as "you" say was not "your" music but pre-programmed beats and tunes. If you had taken the time and effort to actually learn your JX-305 Groovesynth you would have been able to virtually create the same type of stuff on that!

I am tired of listening to you pitiful whinging about owning a Moog because to be honest you probably would not even be inspired to learning the first thing about it. You need to go back to basics and learn about sound creation and subtractive synthesis this would give you a foundation to start from.
Why do you not get yourself enrolled on some kind of synthesis course at a local College or University, people there will be only too willing to help you and then you may come to understand what the hell you want from keyboards eventually!

"Fed up" Sanvean signing off forever over and out!