No, he wouldn't be classified as a gospel artist even though he had a very soulful voice, he is known as a jazz artist

Astor Piazzolla was an Argentine tango composer and bandoneon. Piazzolla was known for mixing traditional tango styles of music with jazz. He was born 11 March 1921 and died 4 July 1994.

There is no prominent jazz artist by the name of Tin Man. It is possible that you may be thinking of a different artist or group. Jazz artists such as Miles Davis, John Coltrane, or Louis Armstrong are more well-known in the jazz genre.

Bob Wade - artist - was born in 1943.

Yes, Najee the jazz artist is married to Karen since 2000