By commission of the Siemens Foundation for Irvine Arditti and the Arditti String Quartet, Felder has created a work of dynamic contrasts. From the outset, he asks much of the strings ("Fiery - very aggressive!") through a sustained fortissimo passage, shifting quickly to alternate states ("suddenly subdued") and effects ("effervescent"). "Afire," "intense," "perky," even "mechanically! incessant" are instructions throughout. For advanced performers. Duration: 17'30"'