I want to output the audio from my android tablet on the speakers or head phones of the casio px s7000 while playing the piano. I installed the casio music space app on my android tablet. In the connection settings of the app I connectet my px s7000 per WU-BT10 MIDI to my tablet. But when I start an audio on the tablet the output is only on the tablet and not on the speakers of the piano. What am I doing wrong?