121. Part Names and FunctionsOTHERS22. METRONOME buttonThe METRONOME button is used to start or stop the metronome.23. TRANSPOSE buttonThe TRANSPOSE button is used to turn the TRANSPOSE function ON/OFF.24. STORE buttonThe STORE button is used to store the settings of the MP6.25. SYSTEM buttonThe SYSTEM button is used to set the system parameters of the MP6.26. USB buttonThe USB button is used to access the MP6’s USB functions: Load, Save, Rename, Delete,and Format.1.2 HEADPHONE JACKThe headphone jack is located in front at the left end of the key slip.Use a headphone with a standard stereo 1/4 inch phone jack.