You make me smile bill . Isn't an entertainment organ ......just an Expensive organ with errr .........an arranger inside ? Ha ha ! You could do stand up comedy honestly !

And I did not know that a midi keyboard and an additional computer and external software was "one instrument " or could meet the fluidty and ease of use as an arranger but i guess anything fits the description of one musical instrument in your world if you really really want it to ...... As always it's been fun .