In music, a looper is a device—often a pedal or processor —that records a musical phrase and plays it back repeatedly.
In biology, a "looper" is the larva of certain moth species, most notably the cabbage looper ( Trichoplusia ni ). Looper - an overview | ScienceDirect Topics Looper
Musicians use it to layer sounds, allowing a solo performer to function as a full band by adding bass lines, rhythms, and harmonies in real-time. In music, a looper is a device—often a