from prison. Although the cultural boycott had succeeded in isolating the apartheid government culturally, it also affected musicians who had worked against apartheid within South Africa; thus Johnny Clegg and Savuka were forbidden from playing at the concert. Lyrical and musical themes The lyrics of anti-apartheid protest music often used subversive meanings hidden under innocuous lyrics, partially as a consequence of the censorship that they experienced. Purely musical techniques were also used to convey meaning. The tendency to use hidden meaning increased as the government grew less tolerant from the 1950s to the 1980s. Popular protest songs of the 1950s often directly addressed politicians. "Ndodemnyama we Verwoerd" by Mini told Hendrik Verwoerd "Naants'indod'emnyama, Verwoerd bhasobha" (beware of the advancing blacks), while a song referring to pass laws in 1956 included the phrase "Hey Strydom, Wathint'a bafazi, way ithint'imbodoko uzaKufa" (Strydom, now that you have touched the women, you have struck a rock, you have dislodged a boulder, and you will be crushed). Following the Sharpeville massacre songs became less directly critical of the government, and more mournful. "Thina Sizwe" included references to stolen land, was described as depicting emotional desolation, while "Senzeni Na" (what have we done) achieved the same effect by repeating that phrase a number of times. Some musicians adapted innocuous popular tunes and modified their lyrics, thereby avoiding the censors. The Soweto uprising marked a turning point in the movement, as songs written in the 1980s again became more direct, with the appearance of musicians such as Lucey, who "believed in an in‐your‐face, tell‐it‐like‐it‐is approach". Lyrics from this period included calls such as "They are lying to themselves. Arresting us, killing us, won't work. We'll still fight for our land," and "The whites don't negotiate with us, so let's fight". A number of South African "Freedom Songs" had musical origins in makwaya, or choir music, which combined elements of Christian hymns with traditional South African musical forms. The songs were often short and repetitive, using a "call-and-response" structure. The music was primarily in indigenous languages such as Xhosa or Zulu, as well as in English. Melodies used in these songs were often very straightforward. Songs in the movement portrayed basic symbols that were important in South Africa—re-purposing them to represent their message of resistance to apartheid. This trend had begun decades previously when South African jazz musicians had added African elements to jazz music adapted from the