Radiohead in the context of "Creep (Radiohead song)"

A riff is a short, repeated motif or figure in the melody or accompaniment of a musical composition. Riffs are most often found in various genres of rock music (including punk and heavy metal music), as well as Latin, funk, and jazz, although classical music is also sometimes based on a riff, as in Ravel's Boléro. Riffs can be as simple as a tenor saxophone honking a simple, catchy rhythmic figure, or as complex as the riff-based variations in the head arrangements played by the Count Basie Orchestra.

David Brackett (1999) defines riffs as "short melodic phrases", while Richard Middleton (1999) defines them as "short rhythmic, melodic, or harmonic figures repeated to form a structural framework". Author Rikky Rooksby states: "A riff is a short, repeated, memorable musical phrase, often pitched low on the guitar, which focuses much of the energy and excitement of a rock song."

Indie rock is a subgenre of rock music that originated in the United Kingdom, United States and New Zealand in the early to mid-1980s. Although the term was originally used to describe rock music released through independent record labels, by the 1990s it became more widely associated with the music such bands produced.

The sound of indie rock has its origins in the UK DIY music of the Buzzcocks, Desperate Bicycles and Television Personalities and the New Zealand Dunedin sound of the Chills, Tall Dwarfs, the Clean and the Verlaines, alongside Australia's the Go-Betweens and early 1980s college rock radio stations who would frequently play jangle pop bands like the Smiths and R.E.M. The genre solidified itself during the mid–1980s with NME's C86 cassette in the United Kingdom and the underground success of Sonic Youth, Dinosaur Jr. and Unrest in the United States. During the 1990s, indie rock bands like Sonic Youth, the Pixies and Radiohead all released albums on major labels and subgenres like slowcore, Midwest emo, slacker rock and space rock began. By this time, "indie" had evolved to refer to bands whose music was released on independent record labels, in addition to the record labels themselves. As the decade progressed many individual local scenes developed their own distinct takes on the genre: baggy in Manchester; grebo in Stourbridge and Leicester; and shoegaze in London and the Thames Valley.