In music, an ostinato (derived from Italian: "stubborn", compare English: 'obstinate') is a motif or phrase, which is persistently repeated in the same musical voice.
An ostinato is always a succession of equal sounds, wherein each note always has the same weight or stress. The repeating idea may be a rhythmic pattern, part of a tune, or a complete melody in itself. Both "ostinatos" and "ostinati" are accepted English plural forms, the latter reflecting the word's Italian etymology. Strictly speaking, ostinati should have exact repetition, but in common usage, the term covers repetition with variation and development, such as the alteration of an ostinato line to fit changing harmonies or keys.
If the cadence may be regarded as the cradle of tonality, the ostinato patterns can be considered the playground in which it grew strong and self-confident.—Edward E. Lewinsky
Riff is a jazz term referring to a brief, relaxed phrase repeated over changing melodies. It may serve as a refrain or melodic figure, often played by the rhythm section instruments or solo instrument, that forms the basis or accompaniment of a musical composition. Though they are most often found in rock music, Latin, funk and jazz, classical music is also sometimes based on a simple riff, such as 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". 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."
The term 'riff' entered musical slang in the 1920s, and is used primarily in discussion of forms of rock music or jazz. "Most rock musicians use riff as a near-synonym for musical idea." The etymology of the term is not clearly known. Some sources explain riff as an abbreviation for rhythmic figure or refrain. Use of the term has also misleadingly been extended to comedy where riffing is used to mean the verbal exploration of a particular subject, thus moving the meaning away from the original jazz sense of a repeated figure over which the soloist improvises, to instead indicate the improvisation itself: that is, improvising on a melody or progression as one would improvise on a subject by extending a singular thought, idea or inspiration into a bit, or routine. Charlie Parker's 1945 recording "Thriving on a Riff" brought the term to more popular awareness.
Use in jazz and R&B
In jazz and R&B, riffs are often used as the starting point for longer compositions. The "Night Train" riff was first used in Duke Ellington's "Happy-Go-Lucky Local", which Ellington had recycled from Johnny Hodges' earlier "That's the Blues, Old Man".
The riff from Charlie Parker's bebop number "Now's the Time" (1945) re-emerged four years later as the R&B dance hit, "The Hucklebuck". The verse of "The Hucklebuck", which was another riff, was "borrowed" from the Artie Matthews composition, "Weary Blues". Glenn Miller's "In the Mood" had an earlier life as Wingy Manone's "Tar Paper Stomp". All these songs use twelve bar blues riffs, and most of these riffs probably precede the examples given.
Neither of the terms 'riff' or 'lick' are used in classical music; instead, individual musical phrases used as the basis of classical music pieces are called ostinatos or simply phrases. Contemporary jazz writers also use riff- or lick-like ostinatos in modal music. In Latin jazz guajeo-based riffs are often used.
The term 'riff driven' is used to describe a piece of music that relies on a repeated instrumental riff as the basis of its most prominent melody, cadence, or (in some cases) leitmotif. Riff-driven songs are largely a product of jazz, blues, and post-blues era music (rock and pop). The musical goal of riff-driven songs is akin to the classical continuo effect, but raised to much higher importance (in fact, the repeated riff is used to anchor the song in the ears of the listener). The riff/continuo is brought to the forefront of the musical piece and often is the primary melody that remains in the listener's ears. A call and response often holds the song together, creating a "circular" rather than linear feel.
A few examples of riff-driven songs are "I Feel Fine" by The Beatles, "(I Can't Get No) Satisfaction" by The Rolling Stones, "Black Dog" by Led Zeppelin, "Outshined" by Soundgarden, "Enter Sandman" by Metallica, "Smoke on the Water" by Deep Purple and "Symphony of Destruction" by Megadeth.
In music, a vamp is a repeating musical figure, section, or accompaniment used in jazz, gospel, soul, and musical theater. Vamps are also found in rock, funk, reggae, R&B, pop, country, and post-sixties jazz. Vamps are usually harmonically spare: A vamp may consist of a single chord or a sequence of chords played in a repeated rhythm. The term frequently appeared in the instruction 'Vamp till ready' on sheet music for popular songs in the 1930s and 1940s, indicating that the accompanist should repeat the musical phrase until the vocalist was ready. Vamps are generally symmetrical, self-contained, and open to variation. The equivalent in classical music is an ostinato, in hip hop is the loop and in rock music is the riff.
The term vamp has another meaning in music, which is "to improvise simple accompaniment or variation of a tune". Outside of music, the noun vamp means "something patched up or refurbished" or "something rehashed, as a book based on old material". Similarly, outside of music, the verb "vamp" means "to put together, fabricate or improvise": "With no hard news available about the summit meeting, the reporters vamped up questions based only on rumor." These other meanings are related to the musical meaning, in that a musical vamp is a "fabricated" or "improvised" "rehash" of standard, stock musical phrases.
Classic examples in jazz include "A Night in Tunisia", "Take Five", "A Love Supreme", "Maiden Voyage", "Cantaloupe Island", and Chameleon. Two rock examples include the long jams at the ends of "Loose Change" by Neil Young and Crazy Horse and "Sooner or Later" by King's X.
Jazz, fusion, and latin jazz
In jazz, fusion, and related genres a background vamp provides a performer with a harmonic framework upon which to improvise. In Latin jazz guajeos fullfill the role of piano vamp. A vamp at the beginning of a jazz tune may act as a springboard to the main tune; a vamp at the end of a song is often called a tag.
"Take Five" begins with a repeated, syncopated figure in 5/4 time, which pianist Dave Brubeck plays throughout the song. Vamps are also used in 1970s-era jazz-funk and jazz-rock songs such as "Maiden Voyage" and "Cantaloupe Island".
The music from Miles Davis's modal period (c.1958–63) was based on improvising songs with a small number of chords. The jazz standard "So What" uses a vamp in the two-note "Sooooo what?" figure, regularly played by the piano and the trumpet throughout. Jazz scholar Barry Kernfeld calls this music "Vamp Music". This period of Davis' music has also been called "Impressionist jazz", because it uses some of the same musical features and devices as the so-called "Impressionist" style of classical music of Maurice Ravel and Claude Debussy.
Examples include the outros to George Benson's "Body Talk" and "Plum", and the solo changes to "Breezin'". The following songs are dominated by vamps: John Coltrane, Kenny Burrell, and Grant Green's versions of "My Favorite Things", Herbie Hancock's "Watermelon Man" and "Chameleon", Wes Montgomery's "Bumpin' on Sunset", and Larry Carlton's "Room 335". An example of vamp use in rock music is the ballad section of Queen's "Bohemian Rhapsody".
The Afro-Cuban vamp style known as guajeo is used in the be-bop/Latin jazz standard "A Night in Tunisia". Depending upon the musician, a repeating figure in "A Night in Tunisia" could be called an ostinato, guajeo, riff, or vamp. The Cuban/jazz hybrid spans the disciplines encompassing all of these terms.
Gospel, soul, and funk
In gospel and soul music, the band will often vamp on a simple ostinato groove at the end of a song, usually over a single chord. In soul music, the end of recorded songs often contains a display of vocal "pyrotechnics", such as rapid scales, arpeggios, and improvised passages. For recordings, the sound engineers will gradually fade out the vamp section at the end of a song, to make the transition to the next track on the album. Salsoul singers such as Loleatta Holloway have become notable for their vocal improvisations at the end of songs, and they are sampled and used in other songs. Andrae Crouch extended the use of vamps in gospel, introducing chain vamps (one vamp after the other, each successive vamp drawn from the first).
1970s-era funk music often takes a short one or two bar musical figure based on a single chord that would be considered an introduction vamp in jazz or soul music, and then uses this vamp as the basis of the entire song (Funky Drummer by James Brown, for example). Jazz, blues, and rock are almost always based on chord progressions (a sequence of changing chords), and they use the changing harmony to build tension and sustain listener interest. Unlike these music genres, funk is based on the rhythmic groove of the percussion, rhythm section instruments, and a deep electric bass line, usually all over a single chord. "In funk, harmony is often second to the 'lock,' the linking of contrapuntal parts that are played on guitar, bass, and drums in the repeating vamp."
In musical theater, a vamp, or intro, is the few bars, one to eight, of music without lyrics, which begin a printed copy of a song and which the orchestra or other accompaniment repeats during dialogue or stage business, to provide musical accompaniment for onstage transitions of indeterminate length. The score will provide a one or two bar vamp figure, and indicate "vamp till cue" by the conductor. The vamp gives the onstage singers time to prepare for the song or the next verse, without requiring the music to pause. Once the vamp section is completed, the music will continue on to the next section.
The vamp may be written by the composer of the song, a copyist employed by the publisher, or the arranger for the vocalist. The vamp serves three main purposes: providing the key in which the song will be sung, establishing the tempo, and scene design, or providing emotional context for the song about to be sung. The vamp may be as short as a bell tone, sting (a harmonized bell tone with stress on the starting note), or measures long.
The rideout is the transitional music that begins on the downbeat of the last word of the song and is usually two to four bars long, though it may be as short as a sting or as long as a Roxy Rideout.
Some historical uses
As a very accessible frame that allows improvisation, the ostinato was heavily used in the Baroque epoch. For about a century and a half (starting around 1770), the technique was almost abandoned. It suddenly revived in the dawn of the 20th century with the development of jazz music and also became "perhaps the most typically twentieth-century accompanimental device" used in classical music, in part because of its neoclassical appeal. By the end of the 1910s, the first records featuring jazz music were released. While most of the performers were not able to notate music, mainly the surviving records prove that early jazz music used a technique similar to ostinato.
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