My Secret Heart is a new commission by Streetwise Opera of a music and film installation written by electronic composer and Warp artist Mira Calix, video artists Flat-e and sound designer Dave Sheppard. The new piece is inspired by the Allegri's 17th-century choral work Miserere Mei, a piece so protected by the Vatican that they put an embargo on it. This film shows the installation during Nottingham's Light Night Festival in February 2009.Switzerland imagesNottingham images Less