Listen to Delius: On Hearing The First Cuckoo In Spring online. Delius: On Hearing The First Cuckoo In Spring is an English language song and is sung by Sir Charles Mackerras and Orchestra Of The Welsh National Opera. Delius: On Hearing The First Cuckoo In Spring, from the album Radiant Classics For Spring, was released in the year 2013. The duration of the song is 7:00. Download English songs online from JioSaavn.