Flook is an Anglo-Irish band playing traditional-style instrumental music, much of it penned by the band themselves. Their music is typified by extremely fast, sometimes percussive, flute and whistle atop complex guitar and bodhrán rhythms. Flook is made up of Brian Finnegan, Sarah Allen, Ed Boyd and John Joe Kelly.

History
The band was formed in 1995, originally by Becky Morris, with three flute-playing friends Sarah Allen, Brian Finnegan and Michael McGoldrick, (who left in 1997 to join Capercaillie). The band was briefly known as Three Nations Flutes.

Flook's 10th anniversary tour included a concert at the Purcell Room (on 7 November 2005) as part of a week of "Folk in the Fall" on London's South Bank and another at the new Sage Gateshead concert hall on the south bank of the River Tyne on 10 November 2005. Their third studio album, Haven, was released in October 2005.

In December 2008 the band sent a Christmas message saying they were disbanding. "We wanted to wish you a very...