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Traditional music is often called folk music or even _the_ world music. It is described in different ways, as music of __ lower classes, or music by __ unknown composers, or music which usually does not have _a_ written form. Folk music is passed on orally, in __ other words, it is not written down. The__ songs of _a_ particular type of folk music are learnt and played by members of _the_ community and _the_ next generation of musicians learns them by listening and watching. In this way, __ songs are kept alive. The__original song may go through many changes over _the_ years. Perhaps _the_ best description of traditional music is: 'folk music is what __ people sing'.

Ну, вот.

Traditional music is often called folk music or even world music. It is described in different ways, as music of lower classes, or music by unknown composers, or music which usually does not have a written form. Folk music is passed on orally, in other words, it is not written down. Songs of a particular type of folk music are learnt and played by members of the community and the next generation of musicians learns them by listening and watching. In this way, the songs are kept alive. The original song may go through many changes over years. Perhaps, the best description of traditional music is: 'folk music is what people sing'.

Готово. Вообще, скажу тебе честно, бывают варианты: с артиклями. Но в целом...