Ahmed,
I actually know but I actually forgot to mention the Pitch bender it's self.do you know what I mean...a stick just like Roland and Korg. you see I own the E-500OR and what makes it good for live is the stick and that all the sounds you will need is in the banks that are infront of you.their is also the Expansion thing which I hate and the operating system is never stable but it's very easy to deal with and it's sequencer gives me the same level of what the MC-50MK2 was giving me.the best pitch bender that I am dealing with is the one in my Korg TRITONpro.and korg is kinda smarter than Roland in the pitch bender because it's only used on the sounds that need to not just any sound like Roland(the piano for example).

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vic