Concept
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 s such as WAV, REX2, 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. "Loops are short sections of tracks (probably between one and four bars in length), which you believe might work being repeated." A loop is not "any sample, but ... specifically a small section of sound that's repeated continuously." Contrast with a one-shot sample. "A loop is a sample of a performance that has been edited to repeat seamlessly when the audio file is played end to end." "A drum loop is technically a short recording of multiple drum materials which has been edited to loop seamlessly ( to loop smoothly and continuously), a drum loop repeats until an exact duration is satisfied, for example, to break a single loop to another, you might want to use a drum fill which could also be a seamless loop." Tape loopSampling (music)Tape music and Musique concrète While repetition is used in the music of all cultures, the first musicians to use loops in the sense meant by this article were musique concrete and electroacoustic music pioneers of the 1940s, such as Pierre Schaeffer, Halim El-Dabh, Pierre Henry, Edgard Varèse and Karlheinz Stockhausen.