John Wynne and linguist Dr Sam Hellmuth are guests on BBC Radio 4's Word of Mouth, a long-running radio series exploring 'words and the way we use them', discussing intonation and its relationship to music.

Word of Mouth – episode ‘Intonation: The Music of Speaking’

Michael Rosen and Laura Wright explore the tunes we sing when we are speaking - without even realising it. Sound artist John Wynne extracts the melodies to play in the studio and Sam Hellmuth explains what we use intonation for. Producer Beth O'Dea.

To listen, go to BBC iPlayer Radio (available as listen-again and download until 20 March 2017)