My guest today is Thomas Macfarlane who joins me to discuss his book 'Lennon and McCartney - Painting With Sound'

This book explores the work of two of the most influential composers of the twentieth century. Five decades after the breakup of the Beatles, the music of John Lennon and Paul McCartney continues to fascinate and inspire. Evidence suggests that their uniquely eclectic approach can be traced back to the Liverpool College of Art. Following on that idea, this book explores the creative dialogue between John Lennon and Paul McCartney, both with the Beatles and on their own, that grew out of that early influence.