Translation: Set of parts. Piano Accompaniment. PFA. Arvo Pärt.
Translation: Fratres for Cellos, Score composed by Arvo Part. Universal Edition #UE017710. Published by Universal Edition.
Translation: Set of parts. Piano sheet music. 1935-. Standard notation. Universal Edition #UE019563. Published by Universal Edition.
Translation: For 2 violins, viola, cello. Violin sheet music. fur Strichquartett. 8 4 pages.
Translation: Thalhaimer notes that Fratres, when completed in 1977, was scored for three parts without instrumentation.