Erhu performance in Shamshuipo.jpg

The ''erhu'' (; ) is a Chinese two-stringed bowed musical instrument, more specifically a spike fiddle, which may also be called a ''Southern Fiddle'', and is sometimes known in the Western world as the ''Chinese violin'' or a ''Chinese two-stringed fiddle''.

It is used as a solo instrument as well as in small ensembles and large orchestras. It is the most popular of the huqin family of traditional bowed string instruments used by various ethnic groups of China. As a very versatile instrument, the erhu is used in both traditional and contemporary music arrangements, such as pop, rock and jazz.

History

The ''Erhu'' can be traced back to proto-Mongolic instruments which first appeared in China during the Tang dynasty. It is believed to have evolved from the '' Xiqin'' ( 奚 琴). The xiqin is believed to have originated from the Xi people located in current northeast China.

The first Chinese character of the name of the instrument ( 二, ''èr'', two) is believed to come from the fact that it has two strings. An alternate explanation states that it comes from the fact that it is the second highest huqin in pitch to the gaohu in the modern Chinese orchestra. The second character ( 胡, ''hú'') indicates that it is a member of the ''Huqin'' family, with Hu commonly meaning ''barbarians''. The name ''Huqin'' literally means "instrument of the Hu peoples", suggesting that the instrument may have originated from regions to the north or west of China generally inhabited by nomadic people on the extremities of past Chinese kingdoms.

For most of history, the ''erhu'' was mostly a folk instrument used in southern China, whereas the ''sihu'' was preferred among northern musicians. However, in the 1920s, Liu Tianhua introduced the ''erhu'' to Beijing, and since, it has become the most popular of the ''huqin.''

Historical ''erhu'' and bowed string bows

Historic bowed zithers of China, including the ''Xiqin'', ''Yazheng'', and ''Yaqin'', and also the Korean Ajaeng, were originally played by bowing with a rosined stick, which created friction against the strings. As soon as the horsehair bow was invented, it spread very widely.

Construction

The ''Erhu'' consists of a long vertical stick-like neck, at the top of which are two big tuning pegs, and at the bottom is a small resonator body (sound box) which is covered with python skin on the front (playing) end. Two strings are attached from the pegs to the base, and a small loop of string (''Qian Jin'') placed around the neck and strings acting as a nut pulls the strings towards the skin, holding a minute wooden bridge in place.

The ''Erhu'' has some unusual features:
1. Its characteristic sound is produced through the vibration of the python skin by bowing.
2. There is no fingerboard; the player stops the strings by pressing their fingertips onto the strings without the strings touching the neck.
3. The horse hair bow is never separated from the strings (which were formerly of twisted silk but which today are usually made of metal); it passes between them as opposed to over them (the latter being the case with western bowed stringed instruments).
4. Although there are two strings, they are very close to each other and the player's left hand in effect plays as if on one string. The inside string (nearest to player) is generally tuned to D4 and the outside string to A4, a fifth higher. The maximum range of the instrument is three and a half octaves, from D4 up to A7, before a stopping finger reaches the part of the string in contact with the bow hair. The usual playing range is about two and a half octaves.

Various dense and heavy hardwoods are used in making the ''Erhu''. According to Chinese references the woods include ''zi tan'' (紫檀 red sandalwood and other woods of the genus ''Pterocarpus'' such as padauk), ''Lao hong mu'' (老红木 aged red wood), ''wu mu'' (乌木 black wood), and ''hong mu'' (红木 red wood). Particularly fine ''Erhu''s are often made from pieces of old furniture. A typical ''erhu'' measures 81 cm from top to bottom, the length of the bow also being 81 cm.

The parts of the ''Erhu'':
*''Qín tong'' (琴筒), sound box or resonator body; it is hexagonal (''liu jiao'', southern), octagonal (''ba jiao'', northern), or, less commonly, round.
*''Qín pí/She pí'' (琴皮/蛇皮), skin, made from python. The python skin gives the ''erhu'' its characteristic sound.
*''Qín gan'' (琴杆), neck.
*''Qín tou'' (琴頭), top or tip of neck, usually a simple curve with a piece of bone or plastic on top, but is sometimes elaborately carved with a dragon's head.
*''Qín zhou'' (琴軸). tuning pegs, traditional wooden, or metal machine gear pegs
*''Qiān jin'' (千斤), nut, made from string, or, less commonly, a metal hook
*''Nèi xián'' (内弦), inside or inner string, usually tuned to D4, nearest to player
*''Wai xián'' (外弦), outside or outer string, usually tuned to A4
*''Qín ma'' (琴碼), bridge, made from wood
*''Gong'' (弓), bow, has screw device to vary bow hair tension
*''Gong gan'' (弓杆), bow stick, made from bamboo
*''Gong máo'' (弓毛), bow hair, usually white horsehair
*''Qín diàn'' (琴墊), pad, a piece of sponge, felt, or cloth placed between the strings and skin below the bridge to improve its sound
*''Qín tuō'' (琴托) – base, a piece of wood attached to the bottom of the ''qín tong'' to provide a smooth surface on which to rest on the leg

Most ''Erhu'' are mass-produced in factories. The three most esteemed centres of ''Erhu'' making are Beijing, Shanghai, and Suzhou. In the collectivist period after the establishment of the People's Republic of China, these factories were formed by merging what had been previously private workshops. Although most ''Erhu'' were machine-made in production lines, the highest quality instruments were handmade by specialist craftsmen.

In the 20th century, there have been attempts to standardize and improve the ''Erhu'', with the aim of producing a louder and better sounding instrument. One major change was the use of steel strings instead of silk. The move to steel strings was made gradually. By 1950 the thinner A-string had been replaced by a violin E-string with the thicker D-string remaining silk. By 1958 professional players were using purpose made D and A steel ''Erhu'' strings as standard.

Use of python skin

In 1988 China passed its Law on the Protection of Endangered Species after ratifying the UN Convention on the International Trade in Endangered Species (CITES), making it illegal to use and trade unlicensed pythons. To regulate the use of python skins, China's State Forestry Administration introduced a certification scheme between python skin sellers in Southeast Asia and musical instrument makers in China. From January 1, 2005, new regulations also require ''Erhu''s to have a certificate from the State Forestry Administration, which certify that the ''Erhu'' python skin is not made with wild pythons, but from farm-raised pythons. Individuals are allowed to take up to two ''Erhu''s out of China when traveling; commercial buyers need additional export certificates.

Outside China, manufacturers of ''Erhu'' can issue their own CITES licenses with approval by governments of their respective countries. Such exports are legal as they have been made from legal skin sources.

Some ''Erhu''s are made of recycled products.

The Hong Kong Chinese Orchestra began their research for an alternative to python skin in 2005 and has since designed the Eco-''Huqin'' series, which substitutes python skin with PET Polyester Membrane. For this innovation the Hong Kong Chinese Orchestra received the Ministry of Culture Innovation Award in 2012.

''Erhu'' music

A notable composer for the ''Erhu'' was Liu Tianhua (刘天华/劉天華; Liú Tiānhuá; 1895–1932), a Chinese musician who also studied Western music. He composed 47 exercises and 10 solo pieces (1918–32) which were central to the development of the ''Erhu'' as a solo instrument. His works for the instrument include ''Yue Ye'' (月夜; Yuè yè, Moon Night) and ''Zhu ying Yao hong'' (烛影摇红; Zhú yǐng yáo hóng, Shadows of Candles Flickering Red).

Other solo pieces include ''Er Quan Ying Yue'' (1950, Two Springs Reflecting the Moon) by Abing, Sai Ma'' (Horse Race) by Huang Haihuai , ''Henan Xiaoqu'' (Henan Folk Tune) by Liu Mingyuan, and ''Sanmenxia Changxiangqu'' (1961, Sanmen Gorge Capriccio) by Liu Wenjin. Most solo works are commonly performed with yangqin accompaniment, although pieces such as the ten solos by Liu Tianhua and ''Er Quan Ying Yue''(Two Springs Reflecting the Moon) originally did not have accompaniment.

In addition to the solo repertoire, the ''erhu'' is one of the main instruments in regional music ensembles such as Jiangnan sizhu, Chinese opera ensembles, and the modern large Chinese orchestra.

The ''Erhu'' is used in the music of the Cirque du Soleil show '' O'' and in solo performances in select Shen Yun tours. Even fusion progressive rock groups like The Hsu-nami have incorporated the ''erhu'' into their music and it is their lead instrument. It is incorporated in the Taiwanese black metal band ChthoniC and used in the song "Field Below" by Regina Spektor.

An instrumental album by ''Erhu'' artist Song Fei (宋飞; Song Fei) expresses the painting Along the River During the Qingming Festival (清明上河图; Qīngmíng Shànghé Tú) drawn in the Song dynasty by Zhang Zeduan (张择端; Zhang Zeduan). It was performed with the ''Erhu'', '' Jinghu'', ''Banhu'', ''Gaohu'', etc., to show the Livelihood, Trade, Festival of the Song dynasty; the album contains 18 parts.

More recently, the ''Erhu'' has appeared in several soundtracks, featuring prominently in the TV series '' Earth: Final Conflict'' (played by George Gao) and the massively multiplayer online role-playing game '' World of Warcraft: Mists of Pandaria'' (played by Jiebing Chen). An ''Erhu'' solo is featured in several cues related to Vulcans from 2009's ''Star Trek'' soundtrack by Michael Giacchino.

Musical groups for wedding celebrations in Cambodia often use the Tro, a similar instrument to the Erhu.

An Erhu is listed in the credits for the Doug Anthony All Stars album ''Icon'' as being played by Paul McDermott. The Erhu can be heard in the character songs of China, a character in '' Axis Powers Hetalia''.

Comparisons to Western instruments

Violin

The erhu is often described as a Chinese fiddle, in which, when compared to a fiddle, it has a relatively different style. While most of the instrument is built from wood, like the violin, the wood is not where the 'bridge' is put on. The bridge of an erhu has a flat base, and does not require 'fitting' onto an instrument. The reason is that the erhu uses python skin as its 'top', whereas a violin's top is a wooden plate. The python skin is stretched out like a flat surface, unlike the curved plate of a violin. Also, erhu have the hairs of the bow strung between the two strings, in which both sides of bow hair is used. The violin has the bow hair played on top of the strings. The erhu has only two strings while violin has four.

Playing technique

Tuning

The ''erhu'' is almost always tuned to the interval of a fifth. The inside string (nearest to player) is generally tuned to D4 and the outside string to A4. This is the same as the two middle strings of the violin.

Position

The ''erhu'' is played sitting down, with the sound box placed on the top of the left thigh and the neck held vertically, in the similar fashion as that of a cello or double bass player. However, performers of more recent years have played while standing up using a specially developed belt-clip.

Right hand

The bow is held with an underhand grip. The bow hair is adjusted so it is slightly loose. The fingers of the right hand are used to push the hairs away from the stick in order to create tension in the hairs. The bow hair is placed in between the two strings and both sides of the bow hair are used to produce sound, the player pushes the bow away from the body when bowing the A string (the outside string), and pulls it inwards when bowing the "inside" D string.

Aside from the bowing technique used for most pieces, the ''Erhu'' can be plucked, usually using the second finger of the right hand. This produces a dry, muted tone (if either of the open strings is plucked, the sound is somewhat more resonant) which is sometimes used in contemporary pieces.

Left hand

The left hand alters the pitch of the strings by pressing on the string at the desired point. Being a fretless instrument, the player has fine control over tuning. Techniques include ''hua yin'' (slides), ''rou xian'' (vibrato), and ''huan ba'' (changing positions).

Notable performers

Prior to the 20th century, most ''Huqin'' instruments were used primarily to accompany various forms of Chinese opera and narrative. The use of the ''Erhu'' as a solo instrument began in the early 20th century along with the development of ''guoyue'' (literally "national music"), a modernized form of Chinese traditional music written or adapted for the professional concert stage. Active in the early 20th century were Zhou Shaomei (周少梅; 1885–1938) and Liu Tianhua (刘天华; 1895–1932). Liu laid the foundations of modern ''Erhu'' playing with his ten unaccompanied solos and 47 studies composed in the 1920s and 1930s. Liu Beimao (刘北茂; 1903–1981) was born in Jiangyin, Jiangsu. His compositions include ''Xiao Hua Gu'' (1943) (Little Flower-drum). Jiang Fengzhi (蔣风之; 1908–1986) and Chen Zhenduo (陈振铎) were students of Liu Tianhua, the piece ''Hangong Qiuyue'' (Autumn Moon over the Han Palace) was adapted and arranged by Jiang. Hua Yanjun (A Bing) (华彥君-阿炳,  1893–1950) was a blind street musician. Shortly before his death in 1950, two Chinese musicologists recorded him playing a few ''Erhu'' and '' Pipa'' solo pieces, the best-known being ''Erquan Yingyue''.

With the founding of the People's Republic of China and the expansion of the conservatory system, the solo ''erhu'' tradition continued to develop. Important performers during this time include Lu Xiutang (陆修堂; 1911–1966), Zhang Rui (张锐; born 1920), Sun Wenming (孙文明; 1928–1962), Huang Haihuai (黄海怀), Liu Mingyuan (刘明源; 1931–1996), Tang Liangde (汤良德; 1938–2010), Zhang Shao (张韶) and Song Guosheng (宋国生).

Liu Mingyuan (刘明源; 1931–1996) was born in Tianjin. He was known for his virtuosity on many instruments of the huqin family, in particular the banhu. His compositions and arrangements include ''Henan Xiaoqu'' (Henan Folk Tune) and ''Cao Yuan Shang'' (On Grassland) for Zhonghu. For many years, he taught at the China Conservatory of Music in Beijing.

Tang Liangde (Cantonese: Tong Leung Tak; 汤良德; 1938–2010) was born in Shanghai into a famous Shanghainese musical family. He won the "Shanghai's Spring" ''Erhu'' competition and continued to be the soloist for the Chinese Film Orchestra in Beijing, his composition and solos can be heard throughout the ''Nixon to China'' documentary movie. Tang was the soloist and performed at the Hong Kong Chinese Orchestra, then went on to music broadcasting and education for the Hong Kong Government's Music Office making worldwide tours and was named Art Educator of the Year in 1991 by the Hong Kong Artist Guild.

Wang Guotong (王国潼; born 1939) was born in Dalian, Liaoning. He studied with Jiang Fengzhi, Lan Yusong and Chen Zhenduo and, in 1960, graduated from the Central Conservatory of Music in Beijing. He performed the premiere of ''Sanmenxia Changxiangqu'' (Sanmen Gorge Rhapsody) composed by Liu Wenjin. In 1972, Wang became the ''Erhu'' soloist and later art director of the China Broadcasting Traditional Orchestra. He returned to the Central Conservatory of Music in 1983 as head of the Chinese music department. He has written many books and articles on ''Erhu'' playing and has performed in many countries. Wang also worked with the Beijing National Instruments Factory to further develop ''Erhu'' design.

Min Huifen (閔惠芬; 1945–2014) was born in Yixing, Jiangsu. She first became known as the winner of the 1963 fourth Shanghai Spring Art Festival. She studied with Lu Xiutang and Wang Yi, and graduated from the Shanghai Conservatory of Music in 1968, and became the ''Erhu'' soloist with the ''Shanghai Minzu Yuetuan'' (Shanghai Folk Orchestra). She was the undisputed master of erhu for 50 years.
Yang Ying
(杨英; born 1959) was the featured soloist for the Chinese National Song and Dance Ensemble (中央歌舞团) of Beijing from 1978 to 1996. She was a national ''Erhu'' champion, frequently recorded for the Chinese film and record industry, and is listed in famous persons of China.

Sun Huang 孙凰 has recently recorded a difficult classical violin piece, played by her on the Erhu

Presence in popular music

The ''Erhu'' is featured along with other traditional Chinese instruments such as the '' Pipa'' in the contemporary Chinese instrumental music group Twelve Girls Band. They perform traditional Chinese music as well as Western classical and popular music.

A few groups have used the ''Erhu'' in a rock context. As of 2012, the Taiwanese black metal band Chthonic remain the only black metal band to use the erhu. The New Jersey-based progressive rock band The Hsu-nami plays a variety of rock sub-styles including metal, psychedelic, prog rock, and funk. An amplified ''Erhu'' takes the place of lead vocals. Chie Mukai of the Japanese improv unit Ché-SHIZU also plays the ''Erhu''.

Another group which falls more under Electronica/Drum & Bass is a musical duo from Parkdale, Toronto, Ontario, Canada. The group, known as USS or Ubiquitous Synergy Seeker