UnScramble this Word: i n d h n g a l?

Questions

His 1977 album has "Allison," "Watching the Detectives," "Less Than Zero".?

His children are named Nancy, Frank & Christina?

His composition known as "Water Music" was first performed on July 17, 1717.?

His solo release in 1970 included the cuts "That Would Be Something", "Maybe I'm Amazed" & "Every Night"?

Hit song written by Bruce Springsteen, then charted by Natalie Cole.?