Despite their hit anthem of love and support, Simon and Garfunkel struck some wrong notes.
How an obscure track on a Leonard Cohen album became a global anthem.
Robbie Robertson, Al Kooper and Greil Marcus reflect on Bob Dylan's iconic song.
Soul Music explores the mystery and emotional ties of folk song Scarborough Fair.
Ben E King talks about writing the classic song, and others reflect on its lasting power.
Rod Argent and Colin Blunstone perform Time of the Season for Radio 4's Mastertapes.
Mark Lamarr explores the life of blues woman Memphis Minnie.
Music critic Kevin le Gendre considers why Otis Redding's famous song is still powerful