Bluegrass music is a form of American roots music, and
a related genre of country music. Influenced by the music of Appalachia,
Bluegrass has mixed roots in Irish, Scottish and English traditional music, and
was also later influenced by the music of African-Americans through
incorporation of jazz elements.
Settlers from Britain and Ireland arrived in
Appalachia during the 18th century, and brought with them the musical
traditions of their homelands. These traditions consisted primarily of English
and Scottish ballads—which were essentially unaccompanied narrative—and dance
music, such as Irish reels, which were accompanied by a fiddle. Many older
bluegrass songs come directly from the British Isles. Several Appalachian
bluegrass ballads, such as "Pretty Saro", "Barbara Allen",
"Cuckoo Bird" and "House
Carpenter", come from England and preserve the English ballad tradition both
melodically and lyrically. Others, such as The Two Sisters, also come from
England; however, the lyrics are about Ireland. Some bluegrass fiddle songs
popular in Appalachia, such as "Leather Britches", and "Pretty
Polly",
have Scottish roots. The dance tune Cumberland Gap may be derived
from the tune that accompanies the Scottish ballad Bonnie George Campbell.
Other songs have different names in different places; for instance in England
there is an old ballad known as "A Brisk Young Sailor Courted Me",
but exactly the same song in North American bluegrass is known as "I Wish
My Baby Was Born".
In bluegrass, as in some forms of jazz, one or more
instruments each takes its turn playing the melody and improvising around it,
while the others perform accompaniment; this is especially typified in tunes
called breakdowns. This contrasts with old-time music, in which all instruments
play the melody together or one instrument carries the lead throughout while
the others provide accompaniment. Breakdowns are often characterized by rapid
tempos and unusual instrumental dexterity and sometimes by complex chord
changes.
There are three major subgenres of bluegrass and one
unofficial subgenre. Traditional bluegrass has musicians playing folk songs,
tunes with traditional chord progressions, and using only acoustic instruments,
with an example being Bill Monroe. Progressive bluegrass groups may use
electric instruments and import songs from other genres, particularly rock & roll. Examples include Cadillac Sky and Bearfoot. "Bluegrass
gospel" has emerged as a third subgenre, which uses Christian lyrics, soulful
three- or four-part harmony singing, and sometimes the playing of
instrumentals. A newer development in the bluegrass world is Neo-traditional
bluegrass; exemplified by bands such as The Grascals and Mountain Heart, bands
from this subgenre typically have more than one lead singer. Bluegrass music
has attracted a diverse following worldwide. Bluegrass pioneer Bill Monroe
characterized the genre as: "Scottish bagpipes and ole-time fiddlin'. It's
Methodist and Holiness and Baptist. It's blues and jazz, and it has a high
lonesome sound."
Unlike mainstream country music, bluegrass is
traditionally played on acoustic stringed instruments. The fiddle, five-string
banjo, guitar, mandolin, and upright bass (string bass) are often joined by the
resonator guitar (also referred to as a Dobro) and (occasionally) harmonica or
jaw harp. This instrumentation originated in rural dance bands and is the basis
on which the earliest bluegrass bands were formed.
The guitar is now most commonly played with a style referred
to as flatpicking, unlike the style of early bluegrass guitarists such as
Lester Flatt, who used a thumb pick and finger pick. Banjo players often use
the three-finger picking style made popular by banjoists such as Don Reno and
Earl Scruggs. Fiddlers frequently play in thirds and fifths, producing a sound
that is characteristic to the bluegrass style. Bassists almost always play
pizzicato, occasionally adopting the "slap-style" to accentuate the
beat. A bluegrass bass line is generally a rhythmic alternation between the
tonic and dominant of each chord, with occasional walking bass excursions.
Instrumentation has been an ongoing topic of debate.
Traditional bluegrass performers believe the "correct"
instrumentation is that used by Bill Monroe's band, the Blue Grass Boys
(mandolin, fiddle, guitar, banjo and bass). Departures from the traditional
instrumentation have included dobro, accordion, harmonica, piano, autoharp,
drums, electric guitar, and electric versions of other common bluegrass
instruments, resulting in what has been referred to as "newgrass."
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