Jimmy Fallon and Billy Joel use Loopy to record “The Lion Sleeps Tonight.”
Looping with Ableton Live – “Happy” http://www.wimp.com/trombonehappy/
What is looping?
“Loops are snippets of music that you can repeat and layer to create a whole composition. The Beatles were the first popular music artists to use loops. Paul McCartney was a fan of Karlheinz Stockhausen, a 20th- and 21st-century electronic music pioneer (his face is on the cover of Sgt. Pepper’s Lonely Hearts Club Band) who featured electronic music loops in his compositions.
McCartney replicated that concept in vocals by taking the erase head off his home reel-to-reel tape recorder, spooling a continuous loop of tape through the machine and recording his voice over and over. The Beatles used those tapes on Tomorrow Never Knows, the final track on Revolver. They employed the same approach on Revolution 9 from the White Album.” Source