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A bassline (also known as a bass line or bass part) is the term used in many styles of popular music, such as jazz, blues, funk, dub and electronic, or traditional music, for the low-pitched instrumental part or line played by a rhythm section instrument such as the electric bass, double bass, cello, tuba or keyboard (piano, Hammond organ, electric organ, or synthesizer). It is also used sometimes in classical music. In solo performance, basslines may simply be played in the lower register of any instrument such as guitar while melody and/or further accompaniment is provided in the middle or upper register. Basslines in popular music often use "riffs" or "grooves", which are usually simple, appealing musical motifs or phrases that are repeated, with variation, throughout the song. "The bass differs from other voices because of the particular role it plays in supporting and defining harmonic motion. It does so at levels ranging from immediate, chord-by-chord events to the larger harmonic organization of entire work."〔Cadwallader, Allen (1998). ''Analysis of Tonal Music: A Schenkerian Approach'', p. 45. ISBN 0195102320.〕 Bassline riffs usually emphasize the chord tones of each chord (usually the root note, the third note, the fifth note, and the octave of a chord), which helps to define a song's key. At the same time, basslines work along with the drum part and the other rhythm instruments to create a clear rhythmic pulse. The type of rhythmic pulse used in basslines varies widely in different types of music. In swing jazz and jump blues, basslines are often created from a continuous sequence of quarter notes in a mostly scalar, stepwise part called a "walking bass line". In Latin, salsa music, jazz fusion, reggae, electronica, and some types of rock and metal, basslines may be very rhythmically complex and syncopated. In bluegrass and traditional country music, basslines often emphasize the root and fifth of each chord. Though basslines may be played by many different types of instruments and in a broad musical range, they are generally played on bass instruments and in the range roughly at least an octave and a half below middle C. In classical music such as string quartets and symphonies, basslines play the same harmonic and rhythmic role; however, they are usually referred to as the "bass voice" or the "bass part". ==Instruments== Most popular musical ensembles include an instrument capable of playing bass notes. In the 1920s, a tuba was often used. In the 1930s and 1940s, most popular music groups used the double bass as the bass instrument. Starting in the 1960s, the louder, easier-to-transport bass guitar replaced the double bass in most types of popular music, such as rock and roll, blues, and folk. By the 1970s and 1980s, the electric bass was used in most rock bands and jazz fusion groups. The double bass was still used in some types of popular music that recreated styles from the 1940s and 1950s such as jazz (especially swing and bebop), traditional 1950s blues, jump blues, country, and rockabilly. In some popular music bands, keyboard instruments are used to play the bass line. In organ trios, for example, a Hammond organ player performs the basslines using the organ's pedal keyboard. In some types of popular music, such as hip-hop or house music, the bass lines are played using synthesizers, sequencers, or electro-acoustically modeled samples of basslines. Basslines are especially important in many forms of dance and electronic music, such as electro, drum and bass, dubstep, and most forms of house and trance. In these genres, basslines are almost always performed on synthesizers, either physical, such as the Minimoog and the Roland TB-303, or virtual, such as Sytrus and ZynAddSubFX. Chinese orchestras use the zhōng ruǎn (中阮) and dà ruǎn (大阮) for creating basslines. Other, less common bass instruments are the lā ruǎn (拉阮), dī yīn gé hú (低音革胡), and da dī hú (大低胡) developed during the 1930s. Russian balalaika orchestra use bass balalaika and contrabass balalaika. Also people playing European organs use their feet for bassline's notes and Australia's native music uses didjeridus for bassline. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「bassline」の詳細全文を読む スポンサード リンク
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