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In music, especially Western popular music, a bridge is a contrasting section that prepares for the return of the original material section. In a piece in which the original material or melody is referred to as the "A" section, the bridge may be the third eight-bar phrase in a 32-bar form (the B in AABA), or may be used more loosely in verse-chorus form, or, in a compound AABA form, used as a contrast to a full AABA section.

The bridge is often used to contrast with and prepare for the return of the verse and the chorus. "The b section of the popular song chorus is often called the bridge or release."

Etymology

The term is a calque from a German word for bridge, Steg, used by the Meistersingers of the 15th to the 18th century to describe a transitional section in medieval bar form. The German term became widely known in 1920s Germany through musicologist Alfred Lorenz and his exhaustive studies of Richard Wagner's adaptations of bar form in his popular 19th-century neo-medieval operas. The term entered the English lexicon in the 1930s—translated as bridge—via composers fleeing Nazi Germany who, working in Hollywood and on Broadway, used the term to describe similar transitional sections in the American popular music they were writing.

In classical music

Bridges are also common in classical music, and are known as a specific sequence form—also known as transitions. Formally called a bridge-passage, they delineate separate sections of an extended work, or smooth what would otherwise be an abrupt modulation, such as the transition between the two themes of a sonata form. In the latter context, this transition between two musical subjects is often referred to as the "transition theme"; indeed, in later Romantic symphonies such as Dvořák's New World Symphony or César Franck's Symphony in D minor, the transition theme becomes almost a third subject in itself.

The latter work also provides several good examples of a short bridge to smooth a modulation. Instead of simply repeating the whole exposition in the original key, as would be done in a symphony of the classical period, Franck repeats the first subject a minor third higher in F minor. A two-bar bridge achieves this transition with Franck's characteristic combination of enharmonic and chromatic modulation. After the repeat of the first subject, another bridge of four bars leads into the transition theme in F major, the key of the true second subject.

In a fugue, a bridge is

short passage at the end of the first entrance of the answer and the beginning of the second entrance of the subject. Its purpose is to modulate back to the tonic key (subject) from the answer (which is in the dominant key). Not all fugues include a bridge.

An example of a bridge-passage that separates two sections of a more loosely organized work occurs in George Gershwin's An American in Paris. As Deems Taylor described it in the program notes for the first performance:

Having safely eluded the taxis ... the American's itinerary becomes somewhat obscured. ... However, since what immediately ensues is technically known as a bridge-passage, one is reasonably justified in assuming that the Gershwin pen ... has perpetrated a musical pun and that ... our American has crossed the Seine, and is somewhere on the Left Bank.

Bridges in Popular Music

Bridges are part of the formula for drafting a hit song in Western popular music. Songwriters use bridges to bring variety to a song, whether it be through a new melody, chord progression, or lyrics. Of the Billboard Year-End Hot 100 list of 2011, 80% of the top 20 songs follow a song form including a bridge.

KEY: “V”-Verse, “C”- Chorus, “B”-Bridge

See also

• Break (music)
• Montgomery-Ward bridge
• Sears Roebuck bridge
• Song structure

References

1. Boyd, Bill (1997). Jazz Chord Progressions, p. 56. ISBN 0-7935-7038-7.
2. Benward & Saker (2003). Music: In Theory and Practice, Vol. I, p. 318. Seventh Edition. ISBN 978-0-07-294262-0. Emphasis original.
3. Horst, Brunner (2000). "Bar Form". New Grove Dictionary of Music and Musicians. Oxford: Oxford University Press.
4. Lorenz, Alfred (1924). Das Geheimnis der Form bei Richard Wagner. Berlin.{{cite book}}: CS1 maint: location missing publisher (link)
5. Songstuff Music Glossary
6. Collins Music Encyclopedia, London 1959, article "Symphony"
7. Benward & Saker (2009). Music in Theory and Practice: Volume II, p. 51. Eighth Edition. ISBN 978-0-07-310188-0.
8. An American in Paris & "george gershwin's an american in paris piano solo" , Warner Bros. Publications Inc., 1929 (renewed), p. 36
9. ^ Stricklin, Jeremiah (May 10, 2012). "Understanding the Business of Popular Songs". University of Southern Mississippi – via The Aquila Digital Community.

External links

• Appen, Ralf von / Frei-Hauenschild, Markus "AABA, Refrain, Chorus, Bridge, Prechorus — Song Forms and their Historical Development". In: Samples. Online Publikationen der Gesellschaft für Popularmusikforschung/German Society for Popular Music Studies e.V. Ed. by Ralf von Appen, André Doehring and Thomas Phleps. Vol. 13 (2015).
• Rich, Scott. "Bridge Construction", Money Chords.

v t e Parts of a song
Verse–chorus form	Introduction Verse Pre-chorus Refrain/Chorus Post-chorus Bridge Solo Guitar Drum Break Breakdown Outro False ending
Other musical elements	Bassline Counter-melody Drone Drop Harmony Vocal harmony Hook Melody Ostinato Loop Riff Rhythm Groove

v t e Musical form and development
Arch form Argument Ausmultiplikation Bar form Binary form Bridge Call and response Cell Coda Conclusion Cycle Cyclic form Developing variation Development Drop Exposition Finale Formula composition Hook Introduction Leitmotif Lick Melody Motif Movement Ostinato Overture Period Phrase Pre-chorus Post-chorus Recapitulation Repetition Reprise Riff Rondo Rondò Section Sonata form Sonata rondo form Song structure Strophic form Ternary form Theme Thirty-two-bar form Through-composed Transition Variation Verse–chorus form

• Formal sections in music analysis
• Jazz terminology
• Musical terminology
• Popular music