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300px|thumb|right|[[Malagasy people|Malagasy musicians playing valiha and acoustic guitar]]

The highly diverse and distinctive music of Madagascar has been shaped by the musical traditions of Southeast Asia, Africa, Oceania, Arabia, Portugal, England, France and the United States over time as indigenous people, immigrants, and colonists have made the island their home. Traditional instruments reflect these widespread origins: the and owe their existence to the introduction of the guitar by early Arab or European seafarers, the ubiquitous originated in mainland Africa and the —the bamboo tube zither considered the national instrument of Madagascar—directly evolved from an earlier form of zither carried with the first Austronesian settlers on their outrigger canoes.

Malagasy music can be roughly divided into three categories: traditional, contemporary and popular music. Traditional musical styles vary by region and reflect local ethnographic history. For instance, in the Highlands, the and more subdued vocal styles are emblematic of the Merina, the predominantly Austronesian ethnic group that has inhabited the area since at least the 15th century, whereas among the southern Bara people, who trace their ancestry back to the African mainland, their a cappella vocal traditions bear close resemblance to the polyharmonic singing style common to South Africa. Foreign instruments such as the acoustic guitar and piano have been adapted locally to create uniquely Malagasy forms of music. Contemporary Malagasy musical styles such as the or have evolved from traditional styles modernized by the incorporation of electric guitar, bass, drums and synthesizer. Many Western styles of popular music, including rock, gospel, jazz, reggae, hip-hop and folk rock, have also gained in popularity in Madagascar over the later half of the 20th century.

Music in Madagascar has served a variety of sacred and secular functions. In addition to its performance for entertainment or personal creative expression, music has played a key part in spiritual ceremonies, cultural events and historic and contemporary political functions. By the late 19th century, certain instruments and types of music became primarily associated with specific castes or ethnic groups, although these divisions have always been fluid and are continually evolving.

Traditional music

thumb|right|Distribution of Malagasy musical forms

Malagasy music is highly melodic and distinguishes itself from many traditions of mainland Africa by the predominance of chordophone relative to percussion instruments. Musical instruments and vocal styles found in Madagascar represent a blend of widespread commonalities and highly localized traditions. A common vocal style among the Merina and Betsileo of the Highlands, for instance, does not preclude differences in the prevalence of particular instrument types (the among the Merina, and the and among the Betsileo). Similarly, the practice of (entering a trance state, typically induced by music) is present on both the western and eastern coasts of the island but the vocal styles or instruments used in the ceremony will vary regionally. Music in Madagascar tends toward major keys and diatonic scales, although coastal music makes frequent use of minor keys, most likely due to early Arab influences at coastal ports of call. Malagasy music has served a wide range of social, spiritual and mundane functions across the centuries.

Vocal traditions

Vocal traditions in Madagascar are most often polyharmonic; southern vocal styles bear strong resemblance to South African singing (as exemplified by groups such as Salala or Senge), whereas Highland harmonies, strongly influenced in the past two hundred years by European church music, are more reminiscent of Hawaiian or other Polynesian vocal traditions. Numerous amateur choirs performing Malagasy and Western music can be found in the capital region; the ensemble iCanto is a notable example of a professional choir, with concerts broadcast on national television. In the Highlands, and particularly in the 19th century, vocal performance by large groups called was favored, while in the south and western coastal regions singing was performed with more elaborate ornamentation and in small groups. Over 1500 years ago, the earliest settlers from Indonesia brought the oldest and most emblematic instruments, including the tube zither () which evolved into a box form () distinct to the island. Later settlers from the Arabian peninsula and the eastern coast of Africa contributed early lutes, whistles and other instruments that were incorporated into local musical traditions by the mid-16th century. The influence of instruments and musical styles from France and Great Britain began to have a significant impact on music in Madagascar by the 19th century.

Chordophones

The most emblematic instrument of Madagascar, the , is a bamboo tube zither very similar in form to those used traditionally in Indonesia and the Philippines. It is typically tuned to a diatonic mode to produce complex music based on harmonic, parallel thirds accompanied by a melodic bass line. although a contemporary form also exists that instead uses bicycle brake cables for strings to give the instrument a punchier sound. and are the Antandroy names of a popular Southern chordophone similar to the but with nylon fishing line for strings and five or seven movable frets that facilitate modification of the instrument's tuning. A maximum of four of these are strung over the frets, while the rest are strung lengthwise down the sides of the neck and are strummed with the fingers in accompaniment to the primary melody which is played with a bow. Today, the compositions of this period by pianist theatrical composers like Andrianary Ratianarivo (1895–1949) and Naka Rabemananatsoa (1892–1952) form part of the canon of classical Malagasy music and feature in the repertoire of Malagasy students of piano.

When the modern acoustic guitar was first popularized in Madagascar, it was adopted by the lower classes who were inspired by the piano style but for whom the purchase of a costly piano was out of reach. Soon afterward, the guitar was widely disseminated throughout the island, producing an explosion of regionally distinctive Malagasy guitar styles inspired by the music played on local traditional instruments. The Malagasy acoustic guitar style has been internationally promoted by such artists as Erick Manana and pioneering Bara artist Ernest Randrianasolo (better known by his stage name D'Gary), who blends the rhythms of with innovative open tunings to approximate the sounds of the , and .

The conch shell ( or ) is a similarly ancient instrument believed to have been brought over by early Indonesian settlers. Mainly played by men, it features a lateral blow hole in the Polynesian style and is typically reserved for ritual or spiritual uses rather than to create music for entertainment. The antsiva has also been recorded to have been used as part of Merina royal regalia. The fipple flute is a simple aerophone brought to Madagascar after 1000 CE by immigrants from Africa.

A variety of European aerophones were introduced in the 19th century under the Merina monarchy. These most notably include bugles () and clarinets (), and less frequently the trombone or oboe (). Their use today is largely restricted to the Highlands and the or bands that perform at (reburials), circumcisions and other traditional celebrations. Metal and wood harmonicas are also played. are found throughout the island. In the Highlands, European bass drums () and snare drums introduced in the 19th century have replaced an earlier drum () traditionally beat to accentuate the discourse of a speaker during a or other formal occasions where the oratory art of is practiced. Only men can play the , while women and men may both play the smaller drum. The ("male wood") drum produces the deepest sound and is reserved for the most significant occasions such as , circumcision ceremonies and the ancient festival of the royal bath.

Early forms of xylophone such as the are found throughout the island and are believed to have come across with the original Indonesian settlers.

Contemporary music

Contemporary music comprises modern-day compositions that have their roots in traditional musical styles and have been created for entertainment purposes, typically with the intent of eventual mass dissemination via cassette, compact disc, radio or internet. Modern forms of Malagasy music may incorporate such innovations as amplified or imported instruments (particularly electric guitar, bass guitar, synthesizer and drum kit), blend the sounds of new and traditional instruments or use traditional instruments in innovative ways. As contemporary artists adapt their musical heritage to today's market, they manage to preserve the melodic, chordophone-dominated sound that distinguishes traditional Malagasy music from the more percussion-heavy traditions of mainland Africa. His open and enthusiastic support for then-President Didier Ratsiraka assured his band regular performances in association with Presidential functions, and his band came to define the Ratsiraka epoch for many.

Other important contemporary musicians from the Highlands include Justin Vali and Sylvestre Randafison, both virtuosos; Rakoto Frah, who could play two simultaneously; Solo Miral, featuring guitar played in the style of a ; Tarika, a Malagasy fusion band based in England; Olombelona Ricky, a highly accomplished solo vocalist, and Samoëla, a roots artist whose blunt social and political critiques propelled his group to popularity.

is an electrified version of the traditional musical style that Tandroy singer Mama Sana used to perform at Betsimisaraka and Tsimihety rituals. Since mid-2010s malagasy popular music has been a blend of malagasy music, tropical music (Zouk) and African genres like Coupé décalé and Afrobeats. Artists of this new wave of malagasy music include Black Nadia, Vaiavy Chila, LIANAH and BIG MJ. Jazz has been popularized by artists such as Nicolas Vatomanga. Malagasy hip hop broke into the mainstream in the mid-nineties and has since skyrocketed to popularity through artists such as Da Hopp and 18,3. More recently bands like Oladad are experimenting with the fusion of hip-hop and traditional Malagasy musical styles and instruments. There is also a small metal scene with bands like Sasamaso being the most prominent.Dancehall has gained popularity in Madagascar since late 2010s with artists like Mad Max and Basta Lion.

Performance of Malagasy music

thumb|right|[[Betsileo people|Betsileo farmers playing harmonica, kabosy and guitar]]

Music has long served a variety of secular and sacred purposes in Madagascar. Song may accompany daily tasks, provide entertainment, preserve history or communicate social and political messages. Music is likewise integral to the experience of spiritual ritual among many ethnic and religious groups on the island.

Secular performance

Among some ethnic groups music would help advance a repetitive or arduous task. Geo Shaw, a missionary to Madagascar in the 19th century, described observing Betsileo and Merina serfs singing in the rice fields, "timing the music to the movements of their bodies, so that at each accented note they plant a stalk."

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Endogenous musical styles may also serve as a form of artistic expression, as in the highly syncopated genre of Imerina. The emerged in conjunction with the French introduction of operetta and the subsequent rise of Malagasy theater at the Theatre Municipale d'Isotry beginning in the late 1910s. The vocal style used in is characterized by female use of , a vocal ornamentation delivered in a nasal tone, offset by the (tenor) and rapid-moving (baritone) line sung by the men. inspired the musical duet style , popularized in Imerina during the final two decades of the colonial period, in which the vocal sensibilities are applied to love themes and accompanied by a syncopated composition for piano or occasionally guitar. The is a day-long spectacle of music, dance, and a stylized form of traditional oratory known as performed by a troupe or as a competition between two or more troupes. While the origins of the are uncertain, oral history attributes its modern form to 18th century Merina king Andrianampoinimerina, who reportedly employed musicians to gather the public together for royal speeches and announcements () and to entertain them as they labored on public works projects such as building dikes to irrigate the rice paddies surrounding Antananarivo.

350px|thumb|left|Hira gasy performance of kabary in [[Antananarivo, 1999]]

The troupes of today are remnants of a tradition of court musicians that persisted through the end of the 19th century. Under Queen Ranavalona III, the final monarch in the Merina dynasty, there were three official groups of state musicians: one for the queen, one for her prime minister, and another for the city of Antananarivo. The queen's troupe consisted of over 300 musicians. - over the course of the 19th century the increasing European influence led court musicians and troupes alike to make increasing use of foreign instruments such as violins, clarinets, trombones and trumpets. In coastal regions, music is crucial to helping a medium enter a trance state during a ritual. While in a trance, the medium is possessed by an ancestral spirit. Each spirit is believed to prefer a particular tune or style of music and will not enter the medium unless the suitable piece of music is performed at the ceremony. The first wave of missionaries was obliged to depart Madagascar under Ranavalona I in 1836, but the hymns they developed became anthems for early Malagasy converts persecuted under the Queen's traditionalist policies. In 1871, an LMS missionary (J. Richardson) improved the rhythm and harmony of these original hymns, which were considerably influenced by European musical styles such as quadrilles and waltzes. Originally, church music was performed by slaves seated in groups of four to five at the front of the church. By the 1870s a more European congregational style had been adopted with all members of the church rising to their feet to sing together.