Found the following article online, use it to answer the question: What was played by just Bono and the Edge? Following the seven performances on the Joshua Tree Tour, U2 did not perform "Mothers of the Disappeared" until 1998, on the fourth leg of the PopMart Tour. It was played at three concerts in Argentina and once in Chile, concluding all four shows. Bono sang "el pueblo vencera" at the end of each performance. The first rendition was on 5 February 1998 in Buenos Aires, where it was performed with the Madres accompanying them onstage. The song was played by just Bono and the Edge and was set against footage of the Madres on the video screen. At the conclusion of the song, the band members faced the Madres and applauded, an act in which the rest of the audience joined. Part of the performance was later included on the television documentary Classic Albums: The Joshua Tree.The cost of the tickets was too high for many fans in South America, so the band broadcast the 11 February concert in Chile live on television. Knowing that many people in the country would be watching, they played "Mothers of the Disappeared" in place of "Wake Up Dead Man". The stadium in which the concert was held had been used as a prison camp by Pinochet's regime following the coup d'etat. Again it was performed solely by Bono and the Edge against footage of the Madres, and they invited the women to join them onstage a second time. The Madres held up photographs of their children and spoke about them briefly during the performance, an act which received a mixed reception from the audience. Bono made a plea to Pinochet, asking him to "tell these women where are the bones of their children.""Mothers of the Disappeared" was performed again on the fourth leg of the Vertigo Tour, on 26 February 2006 in Santiago and 2 March in Buenos Aires. Although it was rehearsed by the full band, it was played only by Bono and the Edge in an arrangement similar to the one from the PopMart Tour. The Edge performed the song on a charango that Chilean President Ricardo Lagos had given to Bono earlier that day. It was played at three concerts on the third leg of...
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Mothers of the Disappeared