I am revisiting my music hobby and I have a few questions.
I have an MC-303 ( don't laugh )

I want all three units to sync and play nice, what do I need to get these units to play together without a computer - I want a live set-up, I am not too bothered about recording - this will probably happen later on.
Any ideas on a cost effective solution - I am thinking of a christmas treat to myself, but, I am on a budget.
Many thanks in advance.