Music can be understood as an ephemeral art and politics as a transitory mood. If this is so, what is the relationship between the two? Carmen Pardo lectures on Barcelona University’s Master’s in Sound Art. She has extensively researched the soundscape of contemporary music and has published some of her findings in two important works: En el silencio de la cultura and La escucha oblicua: una invitación a John Cage. Valter Hugo Mãe is the author of books for children and adults, as well as a publisher, fine artist and singer. They will talk to the literary critic and columnist Camilo Hoyos about music as a political expression.