Mike,
I think if one takes advantage of the master mode, the ES could readily be set up for live performances with a band. As far as being a "one man band" such as the Tyros is then I agree.

The other overall thing I would say is that the Tyros is much more fun to just sit down and play the ES is more of a creative tool to work with.
Terry

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jam on,
Terry http://imjazzed.homestead.com/Index.html