Full Score of Oliver Knussen's Music for a Puppet Court (1983): Puzzle Pieces for 2 Chamber Orchestras.
Published by Faber Music.

'In 1972 I arranged two puzzle-canons, attributed to the sixteenth century English composer John Lloyd, for a small ensemble, and the following year added two short variations of my own. Music for a Puppet Court, completed in August 1983, is a recomposition and expansion of this material, scored for two antiphonally placed chamber orchestras. The Lloyd puzzle-canons were found in a court songbook dating from the early years of Henry VIII’s reign. The canti firmi (tenors) are not notated except for crossword-like clues – in one case, for example, the Greek word tris (thrice) followed by four descending notes. The missing cantus was found to consist of these four notes played 3 x 3 times in steadily accelerating note-lengths, from breves to quavers. The solutions were found and published in 1951 by John E. Stevens. The title Music for a Puppet Court is partly a reference to the historical origin of the puzzle-canons, and partly to the fanciful nature of the present instrumental settings. Orchestra 1 (left) centres around a celesta, a guitar, and 2 flutes; Orchestra 2 (right) around a harp and 2 clarinets. Each orchestra contains an assortment of winds, percussion and strings which sustain, amplify or echo music played by the “nucleii”.'

~ Oliver Knussen