Arthur Bliss thought Bliss's music competent but unremarkable. In 1961, Bliss and Hassall collaborated on a cantata, "The Beatitudes", commissioned for the opening of the new Coventry Cathedral. Reviews were friendly, but the work has rarely been performed since, and has been eclipsed by another choral work written for Coventry at the same time, Britten's "War Requiem". Bliss followed this with two further large-scale choral works, "Mary of Magdala" (1962) and "The Golden Cantata" (1963). Throughout his life, Bliss was vigilant on the state of music in Britain, about which he had written extensively since the 1920s. In 1969 he publicly censured
Knife Edge Two Piece 1962–65 at Perry Green, Hertfordshire. Moore made a larger and reversed version of the sculpture, "Mirror Knife Edge 1977" or "Knife Edge Mirror Two Piece" (LH 714) – which is 5.34x7.21x3.63m or about 17.5x23.7x11.9 feet and weighs about – which was commissioned for the entrance to I. M. Pei's east wing of the National Gallery of Art in Washington, D.C. The work is carefully cleaned and conserved each year to maintain the distinction between its shiny and patinated surfaces, as the artist intended. The second cast of "Knife Edge Two Piece" is located in Abingdon Street Gardens, also known as College