German composer Karlheinz Stockhausen didn't just write new music, he created music that had never before been imagined, transformed sound, influenced musicians from classical to Kraftwerk to The Beatles, all while believing he was born on a distant planet.

Electronic musician Actress and Southbank Centre's Director of Music, Gillian Moore spoke to Harriet Fitch Little about his legacy.

"Stockhausen was the first person to open a sort of sonic box that said to me, anything is really possible with sound."

ACTRESS