i want to purchase one of these units for my adult singer/songwriter son. he plays acoustic and electric guitar and harmonica, and at the moment is in a blues band and a bluegrass band. not being a musician or recording engineer myself, i'm having trouber ascertaining if the price were equal would the korg be a better choice. would it also be a better choice even though it costs $400 more? if anyone is well versed in both units i'd really appreciate a summary of what important differences there are.