Time is ticking by for Queen's University, Belfast as it searches for 100 large metronomes to star in the Irish premiere of Gyorgy Ligeti's Poeme Symphonique, part of Queen's Sonorities Music Festival. The score requires the metronomes to be set at varying speeds and started simultaneously. Senior lecturer Michael Alcorn said: "Metronomes should be in working order and should be at least 15cm high."