Thomas Adès’s The Four Quarters(2010) reflects on the diurnalcycle, with its final movement –The Twenty-Fifth Hour – takingthe listener beyond measurabletime. Composed when he was18, Erno von Dohnányi’s work isthe Hungarian master’s officialOpus 1. Established for its first15 years as the Florestan Trio’sFestival in Peasmarsh, 2018 seesthe Peasmarsh Chamber MusicFestival celebrate 20 years ofmusic making in Sussex.