Deeply challenging, even confrontational, to the classical string quartet format, composer JG Thirlwell's Dystonia is a leap forward not only for listeners, but for musicians as well. Mivos Quartet's fiery interpretation of these five pieces - each in it's own way difficult, harrowing, engaging and uplifting - is also a tribute to their dedication, skill and sense of adventure as artists. "This is bold, insistent music that grabs you and takes you where it wants to go," writes Bang on a Can co-founder Michael Gordon in his liner notes for the album. That sentiment lands with a fury in the recording's central piece "Ozymandias," a not-for-the-faint-of- heart excursion that channels the tension and dread of, for example, Bernard Herrmann's famed Psycho score, but expands on it with the subtle, stately majesty of Bartók and Cage.