I just purchased a Yamaha DGX-670. When playing with a style on the keyboard, you can hit the intro or ending button at the desired time and the keyboard does its own thing. If you hit the start/stop button the accompaniment just abruptly ends without a nice substain ending. Is there a way I can get the accompaniment style to end the way I want it to end with just a substain chord ending on the first beat of the measure without the preprogrammed ending the style has that has the bass, guitars, and drums doing some kind of punch on its own?