this video was made using the looper on the Boss DD 20. There are 4 presets and 1 present setting. If you put the looper to present setting, when you are done, you can go to preset #1 and the loop will keep playing until you go to preset #2. Then it will stop. so i used present setting, preset 1 and preset 2 when i made this. Its nice because when you go to preset 1 you can have it set to add some nice delay, chorus or what ever you want to add to your lead while the loop is playing. The DD20 is a workhorse that will always be on my board, and can be had very reasonable these days. https://www.youtube.com/watch?v=dplooODwJl8