| 1959 | Our Garden · chorus | Confirmed | 15' |
| 1960 | Nekrolog | TBD | 10' |
| 1963 | Perpetuum mobile | Confirmed | 6' |
| 1963 | Symphony No. 1 “Polyphonic” | Confirmed | 16' |
| 1964 | Collage on B-A-C-H | Confirmed | 10' |
| 1966 | Pro et contra | Confirmed | 9' |
| 1966 | Symphony No. 2 | Confirmed | 14' |
| 1968 | Credo · chorus | Confirmed | 12' |
| 1971 | Symphony No. 3 | Confirmed | 21' |
| 1977 | Cantus in Memoriam Benjamin Britten | Confirmed | 6' |
| 1977 | Tabula Rasa | Confirmed | 27' |
| 1981 | Tabula Rasa (version for violin, viola, string orchestra and prepared piano) | Confirmed | 27' |
| 1982 | Fratres (version for 4, 8, 12 ... violoncellos) | Confirmed | 10' |
| 1982 | Fratres (version for chamber ensemble) | Confirmed | 10' |
| 1982 | Passio (Passio Domini nostri Jesu Christi secundum Joannem) · chorus | Confirmed | 75' |
| 1983 | Fratres (version for string orchestra and percussion) | Confirmed | 10' |
| 1984 | Wenn Bach Bienen gezüchtet hätte ... | Confirmed | 7' |
| 1985 | Te Deum · chorus | Confirmed | 30' |
| 1986 | Arbos (version for 8 brass instruments and percussion) | Confirmed | 3' |
| 1988 | Festina lente | Confirmed | 9' |
| 1989 | Miserere · chorus | Confirmed | 30' |
| 1990 | Fratres (version for wind octet and percussion) | Confirmed | 10' |
| 1991 | Berliner Messe (version for mixed choir and string orchestra) · chorus | Confirmed | 25' |
| 1991 | Silouan's Song | Confirmed | 6' |
| 1991 | Summa (version for string orchestra) | Confirmed | 6' |
| 1992 | Fratres (version for violin, string orchestra and percussion) | Confirmed | 11' |
| 1992 | Trisagion | Confirmed | 12' |
| 1994 | Concerto piccolo on B-A-C-H | Confirmed | 10' |
| 1994 | Litany · chorus | Confirmed | 30' |
| 1994 | Mein Weg (version for 14 strings and percussion) | Confirmed | 7' |
| 1995 | An den Wassern zu Babel saßen wir und weinten (version for trombone and chamber orchestra) | Confirmed | 8' |
| 1995 | Darf ich ... | Confirmed | 3' |
| 1995 | Fratres (version for violoncello, string orchestra and percussion) | Confirmed | 11' |
| 1995 | Pari intervallo (version for clarinet, trombone and string orchestra) | Confirmed | 6' |
| 1995 | Psalom (version for string orchestra) | Confirmed | 7' |
| 1996 | An den Wassern zu Babel saßen wir und weinten (version for voices and instrumental ensemble) | Confirmed | 8' |
| 1998 | Como cierva sedienta | Confirmed | 30' |
| 1999 | Cantique des degrés · chorus | Confirmed | 7' |
| 1999 | Orient & Occident | Confirmed | 7' |
| 2000 | Cecilia, vergine romana · chorus | Confirmed | 19' |
| 2000 | Fratres (version for guitar, string orchestra and percussion) | Confirmed | 11' |
| 2001 | Wallfahrtslied / Pilgrims' Song (version for male choir and string orchestra) · chorus | Confirmed | 9' |
| 2002 | Lamentate | Confirmed | 37' |
| 2003 | In principio · chorus | Confirmed | 20' |
| 2004 | Da pacem Domine (version for choir and orchestra) · chorus | Confirmed | 6' |
| 2004 | Fratres (version for wind orchestra) | Confirmed | 10' |
| 2004 | L'abbé Agathon (version for soprano and 8 violoncellos) | Confirmed | 15' |
| 2005 | L'abbé Agathon (version for soprano, 4 violas and 4 violoncellos) | Confirmed | 15' |
| 2005 | La Sindone | Confirmed | 9' |
| 2006 | Christmas Lullaby (version for female choir or one voice and string orchestra) · chorus | Confirmed | 2' |
| 2006 | Da pacem Domine (version for choir and string orchestra) · chorus | Confirmed | 6' |
| 2006 | Da pacem Domine (version for string orchestra) | Confirmed | 6' |
| 2006 | Estonian Lullaby (version for female choir or two female voices and string orchestra) · chorus | Confirmed | 2' |
| 2006 | Für Lennart in memoriam | Confirmed | 8' |
| 2007 | Passacaglia (version for 1 or 2 violins, vibraphone and string orchestra) | Confirmed | 5' |
| 2008 | “These Words ...” | Confirmed | 15' |
| 2008 | Alleluia-Tropus (version for vocal ensemble or chamber choir and 8 violoncellos) · chorus | Confirmed | 3' |
| 2008 | De profundis (version for male choir and chamber orchestra) · chorus | Confirmed | 7' |
| 2008 | Fratres (version for viola, string orchestra and percussion) | Confirmed | 11' |
| 2008 | L'abbé Agathon (version for female choir and string orchestra) · chorus | Confirmed | 15' |
| 2008 | L'abbé Agathon (version for soprano and string orchestra) | Confirmed | 15' |
| 2008 | O-Antiphonen | Confirmed | 15' |
| 2008 | Stabat Mater (version for mixed choir and string orchestra) · chorus | Confirmed | 24' |
| 2008 | Symphony No. 4 “Los Angeles” | Confirmed | 34' |
| 2009 | 2 Wiegenlieder (version for soprano, 4 violas and 4 violoncellos) | Confirmed | 5' |
| 2009 | Adam's Lament · chorus | Confirmed | 24' |
| 2009 | Missa brevis (version for 12 violoncellos) | Confirmed | 9' |
| 2009 | Missa syllabica (version for vocal ensemble and string quartet) | Confirmed | 16' |
| 2009 | Silhouette | Confirmed | 7' |
| 2009 | Veni creator (version for mixed choir and string orchestra) · chorus | Confirmed | 2' |
| 2010 | Alleluia-Tropus (version for mixed choir and string orchestra) · chorus | Confirmed | 3' |
| 2010 | Da pacem Domine (version for 8 or 4 violoncellos) | Confirmed | 6' |
| 2010 | In spe (version for wind quintet and string orchestra) | Confirmed | 8' |
| 2010 | Missa brevis (version for 8 violoncellos) | Confirmed | 9' |
| 2010 | Pari intervallo (version for 8 violoncellos) | Confirmed | 6' |
| 2010 | Psalom (version for 8 violoncellos) | Confirmed | 7' |
| 2010 | Solfeggio (version for 8 or 4 violoncellos) | Confirmed | 5' |
| 2010 | Summa (version for 8 or 4 violoncellos) | Confirmed | 5' |
| 2011 | Beatus Petronius (version for two choirs, eight woodwind instruments, tubular bells and string orchestra) · chorus | Confirmed | 5' |
| 2011 | Salve Regina (version for choir, celesta and string orchestra) · chorus | Confirmed | 12' |
| 2011 | Statuit ei Dominus (version for two choirs, eight woodwind instruments and string orchestra) · chorus | Confirmed | 5' |
| 2012 | Silouan's Song (version for 8 violoncellos) | Confirmed | 6' |
| 2013 | Swansong | Confirmed | 6' |
| 2013 | Vater unser (version for boy's voice or countertenor and string orchestra) | Confirmed | 2' |
| 2014 | Sequentia | Confirmed | 5' |
| 2015 | Greater Antiphons | Confirmed | 15' |
| 2015 | Songs from Childhood (for children's choir and ensemble) · chorus | Confirmed | 28' |
| 2017 | Fratres (version for trombone, string orchestra and percussion) | Confirmed | 11' |
| 2018 | Prayer (after Kanon Pokajanen) · chorus | Confirmed | 13' |
| 2019 | La Sindone (version for violin and orchestra) | Confirmed | 9' |
| 2019 | Vater unser (version for mixed choir, piano and string orchestra) · chorus | Confirmed | 2' |
| 2023 | Littlemore Tractus (version for mixed choir and orchestra) · chorus | Confirmed | 6' |