U+1F502 Clockwise Rightwards and Leftwards Open Circle Arrows with Circled One Overlay

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In music, a loop is a repeating section of sound material. Short sections can be repeated to create ostinato patterns. Longer sections can also be repeated: for example, a player might loop what they play on an entire verse of a song in order to then play along with it, accompanying themselves.

Loops can be created using a wide range of music technologies including turntables, digital samplers, looper pedals, synthesizers, sequencers, drum machines, tape machines, and delay units, and they can be programmed using computer music software. The feature to loop a section of an audio track or video footage is also referred to by electronics vendors as A–B repeat.

Royalty-free loops can be purchased and downloaded for music creation from companies like The Loop Loft, Native Instruments, Splice and Output.

Loops are supplied in either MIDI or Audio file formats such as WAV, REX2, AIFF and MP3. Musicians play loops by triggering the start of the musical sequence by using a MIDI controller such as an Ableton Push or a Native Instruments MASCHINE.