Mercedes Sosa was a legendary Argentine folk singer with an incredible voice. Known as ‘the voice of the voiceless ones’, she was a musical activist, even getting arrested on stage at a concert in 1979. A friend in Buenos Aires has been sending me songs to listen to, including Gracias a la Vida, written by Chilean Violeta Parra and one of Mercedes Sosa’s signature songs. I love this live version with Joan Baez in 1988.