I have read the comments with interest.
I myself am not a keyboard player of any worth and would not be able to perform my vocals without my trusty PSR3000 using quite unashamably other accomplished musicians midi files which have not been copyrighted.
I am 71 year old carer of a 32 year old son who is wheelchair bound and find it difficult to get with others to reherse etc.
My efforts seem to be well received by the older generation.
My point is it depends on our circumstances,ability and drive on the way you chose perform.
True artists in my opinion are those whose efforts are appreciated by his audience and they show it.

Cousin Ken