group and the purpose of the visit. Taonga pūoro (traditional Māori musical instruments) There is a rich tradition of wind, percussion and whirled instruments known by the collective term taonga pūoro. The work of researchers and enthusiasts such as Richard Nunns, Hirini Melbourne and Brian Flintoff has provided a wealth of knowledge and information around the sounds, history and stories of these instruments, which included various types of flutes, wooden trumpets, percussion instruments and bull-roarers. Revival of traditional music As part of a deliberate campaign to revive Māori music and culture in the early 20th century, Āpirana Ngata invented the "action song" (waiata-a-ringa) in which stylised body movements, many with standardised meanings, synchronise with the singing. He, Tuini Ngawai and the tourist concert parties of Rotorua developed the familiar performance of today, with sung entrance, poi, haka ("war dance"), stick game, hymn, ancient song and/or action song, and sung exit. The group that performs it is known as a kapa haka, and in the last few decades, competitions within iwi (tribes) and religious denominations regionally and nationally, have raised their performances to a high standard. In 1964, The Polynesian Festival (which became the Aotearoa Traditional Māori Performing Arts Festival and is now known as Te Matatini), was founded with the express purpose of encouraging the development of Māori music. Contemporary Māori music While the guitar has become an almost universal instrument to accompany Maori performances today, this only dates from the mid 20th century. Earlier performers used the piano or violin. Some modern artists such as Hinewehi Mohi, Tiki Taane, Maisey Rika and Taisha Tari have revived the use of traditional instruments. Ngata and Tuini Ngawai composed many songs using European tunes, to encourage Māori pride and, from 1939, to raise morale among Māori at home and at the war. Many, such as "Hoki mai e tama mā" and "E te Hokowhiti-a-Tū" (to the tune of "In the Mood") are still sung today. More recently, other styles originating overseas, including jazz, swing and rock have been incorporated. In the 1980s and 1990s, Hirini Melbourne composed prolifically in an adapted form of traditional style (His Tīhore mai te rangi seldom ranges outside a major third, and Ngā iwi e outside a fourth) and groups like Herbs created a Māori style of reggae. Traditional heavy metal is prevalent in Māori societies today with the heavy guitar usage similar to Blues Rock style