Björn Svante Afzelius was a Swedish singer-songwriter and guitar player. He was an outspoken socialist, known for his support for Olof Palme. His songs are about love, politics and joys and sadness in life.

Progg was a left-wing and anti-commercial musical movement in Sweden that began in the late 1960s and became more widespread in the 1970s. Not to be confused with the English expressions "progressive music" or "prog rock," progg is a contraction of the Swedish word for musical progressivism, progressiv musik. While there were progg bands playing progressive rock, the progg movement encompassed many different musical genres.