Hello all I have a Yamaha Tyros3.I have a split point for left at F#2.When I lower the volume of the left with the balance buttons,that does not lower the volume of the left.The problem that I am having is the left hand chords are being drowned out by the right melody.I am using organ voices.The left hand chords can hardly be heard.Can anyone please explain to me how to lower the volume of the left hand chords?thank you.