DICTIONARIESFROM THE NEW GROVE'S DICTIONARY OF MUSIC AND MUSICIANS:
"His music has been widely performed at European festivals and concert seasons by groups such as Ensemble InterContemporain, Avanti, The Arditti Quartet, Ensemble L'Itinéraire and the Caput Ensemble, to name a few. He has also published a book of poetry, and has written on the developement of Icelandic prosody from a musical perspective.
His output consists almost entirely of instrumental works, characterized by a brilliant, colorful musical sound. Several of his works reflect his interest in prosody, and rhythm and metrics may be said to occupy a central role in many of them (A verso, Le pas, les pentes, Envoi, La métrique du cri). In his recent work he has increasingly explored the point of contact between timbre, harmony and rhythm, which in his first String Quartet (HZH) leads to a constant dissolution between prevalently timbral, harmonic, or rhythmic situations, all of them issued from the same structural matrix."