Plot: This second show from the Manchester International Festival sees Rufus Wainwright discuss his first opera, Prima Donna; dancer Carlos Acosta preparing a new work for the festival; and a profile of the Young at Heart chorus - 25 singers in their 70s and 80s who are preparing a new show based on iconic Manchester songs. Also tonight, Zaha Hadid converts the Manchester Art Gallery into a music hall where violinist Alina Ibragimova performs Bach