Yeah, the problem exactly. Upstairs, on my father's el. piano, there's 3 pedals, and you can use one of them to great effect, eliminating this problem. Is there such a thing for keyboards? Like a pedalset or something? Because you can do a lot more with 3 different pedals than just oneno need for that. Just lift your hand up. You don't have to keep the base note pressed all the time. If you do want that note to be more "longer" lasting just press your sustain pedal... but be careful not to mess up your right hand tones then cause they will last longer too.
<<Gratwhol>>