Paulinho da Viola (born Paulo César Batista de Faria on 12 November 1942) (Portuguese pronunciation: [pawˈlĩɲu daviˈɔlɐ]) is a Brazilian sambista, singer-songwriter, guitar, cavaquinho and mandolin player, known for his sophisticated harmonies and soft, gentle singing voice.

Source: Wikipedia (https://en.wikipedia.org/wiki/Paulinho_da_Viola)