Gary, I just don't see playing a song like "Until it's time for me to go" would showcase any keyboard comparison...that is why I chose to use a dance tune (SMF)...

Whenever I perform ..playing that tune ...I play rubato , and only piano....for a more expressive feel..

Guys , I can play a melody over chords just like you do..and I can right hand or both hand comp over arranger auto play too...

There is no purpose to illustrate this...and would not give a better comparison from what I posted as examples already...