With Mark Lawson Grammy-award winning singer-songwriter Macy Gray talks about her latest disc, Covered, her own take on the cover album. The songs come largely from the indie scene of the last decade, with versions of tracks by Arcade Fire, Radiohead and My Chemical Romance - as well as a special appearance by actor Idris Elba. Culture Minister Ed Vaizey discusses why he's optimist about the future of library services in England, and why he believes giving responsibility for library development to the Arts Council will help individual libraries stay relevant to their local communities. Composer Michael Berkeley and writer Adam Mars-Jones discuss the many attempts by novelists over the years to replicate the condition of music in their prose, from James Joyce to Anthony Burgess to the latest example, Sound by T.M. Wolf. The British Museum is re-opening a gallery dedicated to its extensive collection of money, at a time when the global economic system is in extraordinary focus. The Citi Money Gallery gives a historical context to today's concerns, starting 4500 years ago, and ending with the latest developments in digital technology. The BBC's Economics editor Stephanie Flanders gives her verdict. Producer Lisa Davis.