Odi quelrusignolo
Che va di ramo in ramo
Cantado; io amo; io amo.
Tasso's Aminta
This mournful heart can dream of nought but thee,
As with slow steps among these shades I move,
And hear the nightingale from tree to tree
Sighing "I love! I love!"
This mournful heart wakes to one thought alone
That still our fatal parting will renew,
To hear that bird when Spring's last eve is gone
Sighing "Adieu! Adieu!"
Louisa Stuart Costello
http://www.poemhunter.com/poem/song-this-mournful-heart/