Make sure the loop pedal is correctly connected. Connect one 1/4-inch instrument cable to the input on your loop pedal and the output on your instrument. Connect the other /4-inch instrument cable to the output on your loop pedal and the input on your amplifier.
Record a piece of a music into the loop pedal. Step on the Record button of your loop pedal and play your piece of music. Step on the button again to stop recording. This piece is now stored in the loop pedal.
Use the recording to transition between songs by stepping on the Play button on your loop pedal. When you want the piece to stop playing, step on the button again.
Record the loop pedal as a transition between songs in a studio setting. Press "Record" in your studio software and step on the Play button on your loop pedal. When you have recorded the looped piece of music, press "Stop" in your studio software. Use the recorded loop as a transition between multiple songs in the recording.