Sirensong functions beautifully as an opening track and as an introduction to Haven of Echoes, as it deals with perhaps the most resounding theme of the album, namely isolation and our gradual disconnect from one another. Overall however, the song offers a message of hope, suggesting there is always a way back, even if it can seem an incredibly difficult path to take. Musically, it also epitomises the dark and foreboding, yet hauntingly beautiful soundscapes that are to be found throughout the album.