What you thing if you can use keyboard which is playing VSTs, giga files and a lot of thing on stage.

I have LIONSTRACS MEDIASTATION. And for live playing is realy good.

I use there sounds in giga format from my and official LIBRARY, and ROCK ORGANS B4.
Here are also possible splits and VST effects.

If you are familiar with studio than is this for you not big deal.

That is keyboard based on operating system LINUX. I can tell you that with 76 keys.

here is link:

http://www.lionstracs.com/store/

best regards.

Magica ALFA