Leon Russell wrote "A Song For You" in 1970, and the Carpenters recorded the song in 1972. In 1970, Elton John also released "Your Song," which would be Elton's first major hit. In terms of theme (as can be gathered from the title), are the songs musical siblings? Not only do they share a similar theme and title, but the melody for the verse that begins, "but we're alone now and I'm singing this song for you" echoes that of "my gift is my song and this one's for you" from "Your Song." I'm not arguing that Leon or Elton consciously plagiarized each other, but it seems like both of them were headed in similar directions with these two songs, both melodically and lyrically.