only if synthesizer is the only keyboard a person plays do I consider that person not a real musician

What an amazing statement, Ron. Does this mean that, in spite of many years of musical training, of playing with other excellent musicians, of being able to read music proficiently (for example) - in spite of all that, a person choosing to express him or her self purely on a synthesiser is not a "real musician". How on earth can the choice of instrument have any bearing on a person's musical ability? They either play their instrument of choice well, or they don't.

I happen to have a Korg N1 synthesiser, a very fine professional instrument - on which I've played blues, boogie-woogie, jazz and all sorts of stuff. I also play guitar, mandolin, tenor guitar, bass and other stuff. Presumably, if I only played the Korg, I wouldn't be a real musician. But because I play other stuff I am...

Funny old world.