Song of the Sireniae (sound installation) listens to the transformation of coastal habitats by warming and expanding seas and imagines a near future where lands and waters are continually in rapid flux. It is composed from field recordings gathered along a stretch of local, economically neglected urban coastline, where semi-flooded marine caves are filled with an unexpected and glowing emerald-green sea. The title plays on the duality of the word ‘siren’ – both hybrid creature from mythology, and piercing warning sounds – and ‘sirenia’, or fully aquatic, herbivorous mammals. Here, the rhythm of swimming is a laboured, persistent act in which breath signals effort and endurance. Throughout the composition, a series of chimes in a progression of resonating notes recalls the flood warning sirens of an historic European lagoon city where inundation is a constant concern.