Riff

From Wikinfo

Riff is also an alternate spelling of Rif, a region of Morocco.

A riff is an ostinato figure: a repeated chord progression or melodic figure, often played by the rhythm section instruments, that forms the basis or accompaniment of a rock music or jazz composition.

The term "riff" is sometimes regarded as slang, and is used primarily in discussion of forms of rock music or jazz. "Most rock musicians use 'riff' as a synonym, almost, for 'musical idea.'" (Middleton 1990, p.125)

Some sources explain "riff" as an abbreviation for "rhythmic figure".

David Brackett (1999) defines them as, "short melodic phrases," while Richard Middleton (1999) defines them as, "short rhythmic, melodic, or harmonic figures repeated to form a structural framework."

A great many rock songs, and nearly all heavy metal music, are formed from a structure of guitar riffs.

Popular pieces and songs that depend on riffs for their effect

"Sing, Sing, Sing" by Benny Goodman
"Take Five" by The Dave Brubeck Quartet
"(I Can't Get No) Satisfaction" by The Rolling Stones
"Na Na Hey Hey Goodbye" by Steam
"Smoke on the Water" by Deep Purple
"Stayin' Alive" by the Bee Gees
"Money" by Pink Floyd
"Back In Black" by AC/DC
"Purple Haze" by Jimi Hendrix
"Seven Nation Army" by The White Stripes
"Day Tripper" by The Beatles
"Sunshine Of Your Love" by Cream

Notation and sound examples

"In-A-Gadda-Da-Vida" by Iron Butterfly

File:Iron Butterfly In-A-Gadda-Da-Vida Riff.PNG

File:Kcmsound 22px.png Listen to the above. (more info)

"Iron Man" by Black Sabbath

File:Iron Man riff.PNG

File:Kcmsound 22px.png Listen to the above. (more info)

"Take Five" by Dave Brubeck

File:Take Five introduction.png

File:Kcmsound 22px.png Listen to a sample of "Take Five". (more info)

"You Really Got Me" by The Kinks

File:The Kinks You Really Got Me riff.PNG

Source

Middleton, Richard (1999). Form and Music. Key Terms in Popular Music and Culture. Malden, Massachusetts. ISBN 0631212639.
Middleton, Richard (1990/2002). Studying Popular Music. Philadelphia: Open University Press. ISBN 0335152759.