question: Which nine-time Grammy Award-winning pioneers of Christian music had their final performance in 1988?
answer: The Blackwood Brothers
context: Title: The Blackwood Brothers
  Passage: The Blackwood Brothers are an American southern gospel quartet.  They are nine-time Grammy Award-winning pioneers of the Christian music industry.
  Title: The Gotee Brothers
  Passage: The Gotee Brothers were a Contemporary Christian Music group formed of Toby McKeehan (tobyMac), Joey Elwood, and Todd Collins that recorded one album in the 1990s entitled "ERACE".  The album's name abbreviated "Eliminating Racism and Creating Equality", and its contents dealt with racial issues.  McKeehan is currently a Grammy Award-winning solo artist who was also part of the Grammy Award-winning group dcTalk from 1988-2001.  Both McKeehan and Elwood are co-founders of Gotee Records, best known for bringing acts to the scene such as GRITS, Family Force 5, Relient K, and Stephanie Smith.
  Title: Glad (band)
  Passage: GLAD is one of the pioneers of Christian pop/rock and a cappella music, having formed as a progressive rock group in 1972 and discovered a large audience for their a cappella music in 1988.  Today, with over 1.5 million albums sold, they continue to perform concerts and release occasional recordings.  As Contemporary Christian Music ("CCM Magazine") described it, "GLAD's elegant vocals helped set them apart from other pioneers of Contemporary Christian music.  That vocal sound has since evolved into a complex, self-sustaining life form of its own..."
  Title: Masters V
  Passage: The Masters Five or Masters V was a Southern Gospel Music quartet founded in 1980 by Hovie Lister as a special consolidation of well-known performers from The Statesmen Quartet and The Blackwood Brothers.  The group featured J.D. Sumner as bass, Rosie Rozell as tenor, James Blackwood and Jake Hess alternating between lead and baritone, and Lister on piano.  Their self-titled debut album, "The Masters V", won the 1981 Grammy Award for best traditional gospel performance.  The quartet subsequently endured several personnel changes, often due to health and age-related issues.  The group's final performance was in 1988.
  Title: Aaron A. Brooks
  Passage: Aaron A. Brooks, also known as, Aaron Kinsley-Brooks (born January 24, 1964, San Francisco, California) is an American rock musician, drummer, producer and composer.  He co-founded The Little Death with Moby, Laura Dawn and Daron Murphy.  He is a founding member of the American alternative rock band, The Mars Bonfire.  Aaron also plays or has played drums for the electronic pop band Leisure Cruise; Grammy nominated electro-pop chanteuse Angela McCluskey (of Télépopmusik and Wild Colonials); Grammy award-winning producer/songwriter Mark Hudson; Emmy award-winning actress and singer Jackie Cruz; Grammy award-winning artist Moby; Singer/songwriter and progressive political activist Laura Dawn; Grammy award-winning bassist/songwriter and rock musician Duff McKagen of Guns N' Roses; Circle of Soul; Erin Evermore; Grammy award-winning pianist and songwriter A.J. Croce; Grammy winning singer/songwriter Lana Del Ray; Writer, radio host, progressive political comic and guitarist/singer Jamie Kilstein and his band The Agenda; Model/actress/singer/songwriter Heidi Merrill; And NY based rock singer Carleigh Jade.
  Title: Latin Christian music
  Passage: Latin Christian music (Spanish "Musica Cristiana Latina") is a subgenre of Latin music and Contemporary Christian music.  Christian music is well established in Latin America's Evangelical churches, but is also popular with the majority Roman Catholic community.  Both the Latin Grammy Awards and Latin Billboard Music Awards have Christian music categories, (e.g. Latin Grammy Award for Best Christian Album (Spanish Language)), though the markets are often underestimated due to lack of reporting.
citations: The Blackwood Brothers Masters V