Boole is an electronic hybrid act formed in 1996 by Brad Barkett and Mike Barkett at Loyola College in Baltimore, Maryland. The band was formed as a foray into explorations of post-modern forms of popular dance music, in contrast to Brad Barkett's experimental music project formed in 1990, The Apologizers. The current live lineup consists of Brad Barkett and Mike Barkett on vocals and saxophones.

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In 1996, Boole was formed by Brad Barkett (br0d) and Mike Barkett (The MAB) in Baltimore, Maryland, at Loyola College. After appearing on a few compilations and playing a few shows in the local area, Boole relocated to scenic Washington, DC.

• The Apologizers, formed in 1990 by Brad Barkett, featuring many guest artists
• The Emptyset, formed in 2000 by Brad Barkett, with Jason "Hated" Taylor of Control.org, Mindstalker, and C2
• Mow Down Brown, formed in 2001 by Mike Barkett, with Chris Collins of Fort Chode
• Noonerschaft, formed in 2003 by Brad Barkett, with Ned Kirby of Stromkern and Bogart Shwadchuck of Epsilon Minus
• Pummeler, formed in 2007 by Brad Barkett, with J.J. Barkett of P.N.D., Spill, and Damn That's a Big Beetle I Wonder If It's Poisonous