Which great pianists would be worth queuing for? Piano fans queued around the block in 1965, to see the return of Vladimir Horowitz, one of the century's most celebrated pianists, after a twelve year break from live performance. And in the age of internet booking, piano audiences are no less passionate, dedicated and sometimes frenzied. Richard Sisson, Erica Worth, Eddy Smith, Jonathan Biss, Stephen Hough, Pierre-Laurent Aimard and Angela Hewitt discuss the role of a good audience in creating a great performance.