Question: Who was the mother of the performer of Joy?

full_context: Document 1: 'Til Tomorrow: "'Til Tomorrow" is a 1982 R&B/soul quiet storm-styled song recorded by American singer Marvin Gaye. The song was the second song to be promoted off "Midnight Love" but wasn't released as a physical single, but more of a promotional song as Gaye prepped for a U.S. tour in the year of its release. The single was released on February 8, 1983.
Document 2: Joy (Marvin Gaye song): "Joy" is a 1983 single released by Marvin Gaye, the final single issued from his "Midnight Love" album. The song, which was built around a funk vibe, was inspired by Gaye's religious background, which had also inspired songs such as "God is Love", "Everybody Needs Love" and "Praise". Gaye introduced the song as a tribute to his father during his 1983 concert tour.
Document 3: Let's Get It On (song): ``Let's Get It On ''is a song and hit single by soul musician Marvin Gaye, released June 15, 1973, on Motown - subsidiary label Tamla Records. The song was recorded on March 22, 1973, at Hitsville West in Los Angeles, California. The song features romantic and sexual lyricism and funk instrumentation by The Funk Brothers. The title track of Gaye's landmark 1973 album of the same name, it was written by Marvin Gaye and producer Ed Townsend.`` Let's Get It On'' became Gaye's most successful single for Motown and one of his most well - known songs. With the help of the song's sexually explicit content, ``Let's Get It On ''helped give Gaye a reputation as a sex icon during its initial popularity.
Document 4: Marvin Gaye: Gaye was born Marvin Pentz Gay Jr. on April 2, 1939, at Freedman's Hospital in Washington, D.C., to church minister Marvin Gay Sr., and domestic worker Alberta Gay (née Cooper). His first home was in a public housing project, the Fairfax Apartments (now demolished) at 1617 1st Street SW in the Southwest Waterfront neighborhood. Although one of the city's oldest neighborhoods, with many elegant Federal-style homes, Southwest was primarily a vast slum. Most buildings were small, in extensive disrepair, and lacked both electricity and running water. The alleys were full of one- and two-story shacks, and nearly every dwelling was overcrowded. Gaye and his friends nicknamed the area "Simple City", owing to its being "half-city, half country".
Document 5: Love Me Now or Love Me Later: "Love Me Now or Love Me Later" is a 1980 song recorded by singer Marvin Gaye, who issued it on his final Motown release, "In Our Lifetime", in 1981. The song talked of a conversation between two Lords: "The Good Lord" and "The Evil Lord" in which after creating Earth brings upon man and have a heated discussion over what to do with him. The "evil Lord" wants control of the man while "the good Lord" insists on sharing him equally giving him the reason for love and understanding. When the man, presumably Marvin, messes up, the "evil Lord" fusses that he shouldn't have allowed "the good Lord" to "give him reasons" telling the man in question that he's "got what the soul desires for mankind's flesh" while the "good Lord" tells the man "you can listen to me/I gave you reason for (love and life)". This explains the cover of the album which depicts "the Good Lord" and "the Evil Lord" as clones of Marvin discussing over a table and is probably considered as the album's centerpiece. In the album's alternate version, cut from Odyssey Studios, found the singer reciting a prayer at the end of the song. The song's musical background was an evolution of an earlier recording, 1979's "Just Because You're So Pretty" for Marvin's aborted "Love Man" album.
Document 6: Motown Remembers Marvin Gaye: Never Before Released Masters: Motown Remembers Marvin Gaye: Never Before Released Masters is a posthumous compilation album featuring the singer's unreleased recordings dating from 1963 to 1972 when Gaye was recording with Motown Records. Many of the records featured are overdubbed with eighties-styled drum programming and featured background vocalists whereas original recordings of the songs feature no background vocals and the instrumentation was more live than what is featured in this collection which was produced within a year after Gaye's 1984 death.
Document 7: Love Party: "Love Party" is a 1980 song recorded by singer Marvin Gaye, issued on his 1981 album, "In Our Lifetime". The song brought back the religious-themed atmosphere of the previous song, "Praise" in which Marvin mentions about the chapter of Revelations in the Bible and mentions how prayer and meditation can cleanse one's spirit leaving one "extra special mellow". In the song, Marvin confesses to a woman about how there should be a peaceful, serene love rather than "sinning". The song is given a funky musical vibe similar to the Mighty Clouds of Joy single, "Mighty High". The song originally was recorded as "Dance 'N' Be Happy" with different lyrics.
Document 8: Got to Give It Up: "Got to Give It Up" is a song by American music artist Marvin Gaye. Written by the singer and produced by Art Stewart as a response to a request from Gaye's record label that he perform disco music, it was released in March of 1977.
Document 9: Star Apartments: The Star Apartments are a purpose-built residential housing complex on Los Angeles' Skid Row that caters to the needs of the long-term homeless. Opened in October 2014, the Star Apartments include 102 units averaging 350 square feet, alongside amenities such as on-site medical services, counseling, fitness and art facilities and a community garden. The complex was developed by the Skid Row Housing Trust, and designed by Los Angeles based firm Michael Maltzan Architecture. The building also houses the Los Angeles County Department for Health Services' Housing for Health division.
Document 10: Sanford and Son: "Sanford and Son" stars Redd Foxx as Fred G. Sanford, a widower and junk dealer living at 9114 South Central Avenue in the Watts neighborhood of Los Angeles, California, and Demond Wilson as his son Lamont Sanford. In his youth, Fred moved to South Central Los Angeles from his hometown of St. Louis.
Document 11: Miami: The northern side of Miami includes Midtown, a district with a great mix of diversity with many West Indians, Hispanics, European Americans, bohemians, and artists. Edgewater, and Wynwood, are neighborhoods of Midtown and are made up mostly of high-rise residential towers and are home to the Adrienne Arsht Center for the Performing Arts. The wealthier residents usually live in the northeastern part, in Midtown, the Design District, and the Upper East Side, with many sought after 1920s homes and home of the MiMo Historic District, a style of architecture originated in Miami in the 1950s. The northern side of Miami also has notable African American and Caribbean immigrant communities such as Little Haiti, Overtown (home of the Lyric Theater), and Liberty City.
Document 12: Central West End, St. Louis: Playwright Tennessee Williams grew up in the neighborhood, and the house of the renowned poet T. S. Eliot is located in the Central West End. Beat writer William S. Burroughs's childhood home sits on Pershing Avenue (formerly Berlin Avenue) in the neighborhood. And though, often mistaken as the location of Sally Benson's home, the setting of the stories which were adapted into the movie "Meet Me in St. Louis," 5135 Kensington Avenue was actually located in the Academy neighborhood just across Delmar Boulevard to the north.
Document 13: Detroit: The city has numerous neighborhoods consisting of vacant properties resulting in low inhabited density in those areas, stretching city services and infrastructure. These neighborhoods are concentrated in the northeast and on the city's fringes. A 2009 parcel survey found about a quarter of residential lots in the city to be undeveloped or vacant, and about 10% of the city's housing to be unoccupied. The survey also reported that most (86%) of the city's homes are in good condition with a minority (9%) in fair condition needing only minor repairs.
Document 14: Algiers Motel incident: The Algiers Motel at 8301 Woodward Avenue near the Virginia Park district of Detroit was a black - owned business, owned by Sam Gant and McUrant Pye. It was one of three motels in Detroit owned by Gant and Pye, the others being the Alamo, at Alfred and Woodward, and the Rio Grande, on West Grand near Grand River. Prior to Gant and Pye's purchase in 1965, the motel's white owner had barred black people from staying at the motel. The Algiers was known to police as a center of drugs and prostitution and was raided regularly by the vice squad. It was located close to the then - headquarters of General Motors (GM) and executives of the firm were regular customers. To the rear of the motel, a three - story detached home, known as the Manor House or Annex, was also rented to clients. Its street address was 50 Virginia Park Street, and it was accessible from Virginia Park and through a driveway from Woodward. The motel itself was laid out in the shape of a ``U '', with its office, pool and cabana rooms to the left and a two - story wing of rooms to the right around its parking lot. The Manor House could be seen from Woodward Avenue.
Document 15: Joy (Steven Curtis Chapman album): Joy (stylized JOY) is a holiday studio album by contemporary Christian musician Steven Curtis Chapman. His fourth Christmas album, it has seen commercial charting success, and garnered generally positive reviews from music critics.
ground_truth: Alberta Gay
sub_queries: Joy >> performer Answer: Marvin Gaye
Who is the mother of Marvin Gaye ? Answer: Alberta Gay