1618 Peter Griese Panik by Unbekannt

To say this barrier-breaking string quartet plays modern music is an understatement. All of the five composers showcased on this audacious recording were born in the 20th century. Minimalist Philip Glass is among the best known of the five, whose works cannot possibly be mistaken with anything from the baroque or classical periods. This particular foursome illustrates the grace, beauty, and even power of a string quartet, but goes well beyond. In the words of first violinist and leader David Harrington, "I've always wanted the string quartet to be vital, and energetic, and alive, and cool, and not afraid to kick ass and be absolutely beautiful and ugly if it has to be." The album-ending cover of the Jimi Hendrix classic "Purple Haze" must be heard to be believed.