Turn on the SD7K drum kit. Press the "Power" button found on the side control panel.
Choose the specific song number for the MIDI file using the guide that came with the drum kit.
Use the master volume knob to adjust the volume level, located on the top control panel's left corner.
Locate the "Song" button on the top control panel under the LED display and press to activate. When pressed, the song indicator light illuminates on the panel.
Enter the number of your chosen MIDI file using the "Plus" and "Minus" buttons. Locate these on the top control panel and press continuously until a number from one to 50 is displayed.
Hit the "Stop/Start" button on the top control panel that triggers the selected MIDI file in the sequencer to play. Press the "Stop/Start" button again to end playback.