Question: What is the middle name of the musician that American jazz guitarist, vocalist, and songwriter Joyce Cooling has preformed with who has the first and last initials "A" and "J" respectively?

Context paragraphs:
Mathias Stubø: Mathias Stubø (born 6 April 1992 in Tønsberg, Norway) is a Norwegian musician and DJ in the genre electronica, also known as Proviant Audio.  He is the son of jazz vocalist Kjersti Stubø, grandson of jazz guitarist Thorgeir Stubø and nephew of jazz guitarist Håvard and theater director Eirik Stubø.

Al Jarreau: Alwin Lopez "Al" Jarreau (March 12, 1940 – February 12, 2017) was an American singer and musician.  He received a total of seven Grammy Awards and was nominated for over a dozen more.  Jarreau is perhaps best known for his 1981 album "Breakin' Away".  He also sang the theme song of the late-1980s television series "Moonlighting", and was among the performers on the 1985 charity song "We Are the World."

John Pizzarelli: John Paul Pizzarelli Jr. (born April 6, 1960) is an American jazz guitarist and vocalist.  He has recorded over twenty solo albums and has appeared on more than forty albums by other recording artists, including Paul McCartney, James Taylor, Rosemary Clooney; his father, jazz guitarist Bucky Pizzarelli; and his wife, singer Jessica Molaskey.

Rova Saxophone Quartet: Rova Saxophone Quartet is a San Francisco-based saxophone quartet formed in October 1977.  The name "Rova" is an acronym formed from the last initials of the founding members: Jon Raskin, Larry Ochs, Andrew Voigt, and Bruce Ackley.  When Voigt left in 1988, he was replaced by Steve Adams, but the group did not change the acronym.

Kjersti Stubø: Kjersti Aasan Stubø (born 25 April 1970 in Narvik, Norway) is a Norwegian Jazz musician vocalist, daughter and musical successor of Jazz guitarist Thorgeir Stubø (1943-1986), mother of elektronica musician Mathias Stubø (b. 1992), and sister of Jazz guitarist Håvard and theatre director Eirik Stubø.

Joyce Cooling: Joyce Cooling is an American jazz guitarist, vocalist, and songwriter based in San Francisco.  Cooling has performed with Joe Henderson, Stan Getz, Mark Murphy, Al Jarreau, and Charlie Byrd among others.

Bucky Pizzarelli: John Paul "Bucky" Pizzarelli (born January 9, 1926) is an American jazz guitarist.  He is the father of jazz guitarist John Pizzarelli and double bassist Martin Pizzarelli.  He worked for NBC as a staffman for Dick Cavett (1971) and ABC with Bobby Rosengarden in (1952).  The list of musicians he has collaborated with includes Benny Goodman, Les Paul, and Stéphane Grappelli.  Pizzarelli cites as influences Django Reinhardt, Freddie Green, and George Van Eps.

For Django: For Django is a 1964 album by American jazz guitarist Joe Pass, inspired by the work of the French jazz guitarist Django Reinhardt.  It was reissued on CD in 1999 by BGO Records.

Radu Goldiș: Radu Goldiş (born 1947 in Bucharest, Romania) is a Romanian-born American jazz guitarist and composer, arguably "the best Romanian jazz guitarist of the 60s-80s".

Doug Raney: Doug Raney (August 29, 1956 – May 1, 2016) was an American jazz guitarist.  He was the son of jazz guitarist Jimmy Raney.

Supporting paragraphs: Joyce Cooling Al Jarreau
Answer: Lopez