Kayo Dot is an avant-rock group originally from Boston, Massachusetts, United States (now based in Brooklyn, New York) that was formed in 2003 by Toby Driver after the disband of maudlin of the Well. They released their debut album Choirs of the Eye on John Zorn's Tzadik label that year.
Its lineup is constantly changing, but has consisted of Toby Driver, Ron Varod, Mia Matsumiya, Keith Abrams, Tim Byrnes, David Bodie, Dan Means and Terran Olson.
The music of Kayo Dot can not be accurately described by the limiting contemporary genre nomenclatures. Their songs involve complex instrumentation (composed by singer and frontman Driver), generally without refrain. They are substantially longer than typical rock songs, often ranging from 8 to 15 minutes in length.