When it comes to small classical ensembles retaining mainstream success in pop culture, The Kronos Quartet have been at the top of the list for nearly four decades. In 1986, cello quartet Apocalyptica drew buzz with their Metallica covers album, and more recently their Billboard-charting single "I Don't Care" featuring Adam Gontier of Three Days Grace, and since then countless string-quartet tribute albums have been released. But no other popular ensemble of its kind—if it even has a kind—has displayed the intensity and diversity The Kronos Quartet has since forming in 1973. Among their impressive achievements are the group's 600-some pieces, 400 of them commissioned from luminaries including minimalist Terry Riley; a Grammy for Best Chamber Music Performance in '04; revered soundtrack work (Requiem for a Dream, The Fountain), and a genre-quilting collection of cover pieces that would even make Mike Patton's head spin (Jimi Hendrix, Television, Sigur Rós). And yet The Kronos Quartet continue to explore.
Their latest, Floodplain (also commissioned), examines ongoing difficulties surrounding Middle Eastern countries situated near rivers; places that once nurtured the beginnings of civilization but now face extreme poverty amid hazardous flooding. Kronos fluidly find a way to represent this turmoil with striking depth and earnest emotionality, all with their usual stunning musicianship. Aside from the genre leap the album represents, it also features some unexpected elements, including guest artists Terry Riley, Wu Man, and The Azerbaijani Alim Qasimov Ensemble, as well as accompanying instrumentation that includes electric sitar, tambura, riq, shruti box, begena, tape, nagara, and additional Serbian folk instruments. Kronos also experimented with instruments specifically built for them; Walter Kitundu, apparently the quartet's "instrument builder in residence," invented a musical device called the Beguèna Maridhia, which was inspired by a begena, and a modified voila.