Welsh poet Gwyneth Lewis has the unusual distinction of having written the largest poem in the world, and it's about music. The words are six feet tall, inscribed over the entrance to the Millennium Centre in Cardiff, the music venue designed by Zaha Hadid: 'In these stones horizons sing'. Gwyneth has a passion for opera and the human voice, a passion which began early when her father played his favourite operas on every car journey - the whole family would sing along. As a child she sang in her school choir, singing opera in Welsh. Gwyneth talks very movingly about the depression she has suffered throughout her life; it was music - and particularly a Brahms choral work (the Alto Rhapsody) which she says 'saved my life'. She reads a poem inspired by listening to opera singers, The Voice. And although she is Welsh through and through and she was for a time National Poet of Wales - she reveals that she doesn't have much time for Welsh music.

Choices include Verdi, Poulenc, Brahms, Mozart, Bach, a French chanson - and one haunting Welsh folk song.

Producer Elizabeth Burke

First broadcast 02/06/2013.