Complex sentence: "Non Dimenticar" is a popular song with music by P. G. Redi, the original Italian lyrics by Michele Galdieri, with English lyrics by Shelley Dobbins.
Split into simpler sentences: Non Dimenticar is a popular song. The music was written by P. G. Redi, the original Italian lyrics by Michele Galdieri, with English lyrics by Shelley Dobbins.