A song translator is just looking for a hit--they try to say something that will mean something to their potential audience, whether it says what the original song did, is unimportant--

One of my favorite songs is the Charles Trenet song, Que Reste Til, which is a meditation on what still remains of the loves of younger days, the English "I Wish You Love", is a completely different song, of the "let's break up on a positive note" genre--The English song is good, but the French version is great(for film buffs, particularly you, Fielding, this is the song at the beginning of Truffaut's "Baisers Volés"(Stolen Kisses), which is a line from the song)--