Like Dave, I live and die by my vocals. Therefore, my advice is not to worry too much about the keyboard, but the vocal processor instead. The Voice Live 2 is a great option, but I found the TC Helicon Harmony-M did an outstanding job, and at a much lower cost.

Just sayin,

Gary cool
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)