Thanks for your reply I appreciate it.
We have tried turning down the volume for song, that didn't work when using the Chordana Play app. That's why we took the touch response off the keys so we wouldn't have to press so hard to get the louder sound from the keys.
But even with that the music is much louder than the keys. Even tried turning down the volume on our device we're using the Chordana Play app on.