Trio for Oboe, Viola, and Percussion (first print, score and parts)
Trombone Quartet (score and parts, first print)
Octopus Rex per 8 violoncelli (first print, score and parts)
Organ Works Vol. I: Påskevariasjoner, Passacaglia (first print)
Organ Works Vol. 2, Revidert Åpenbaring (first print, performance score)
13 Violin duets (of which only 2 are questionable) (first print / score & parts)
Organ Works Vol. 3: Chiese di Roma (‘Churches of Rome’ / first print)
Sextet for Oboe, Bassoon, Trumpet, Trombone, Violin and Cello (first print, score & parts)
Quartetto per Archi nr. V (2021) (first print / score & parts)
String Quartet No. 3 in D-flat Op. 96 (parts)
Concert pour Piano, Flûte et Violoncelle avec Orchestre à cordes Op. 89
Symphony No. 2 in B-flat Op. 57
La Forêt enchantée Op. 8 (Légende symphonique)
Istar Op. 42 (Variations symphoniques)
Jour d’été à la Montagne Op. 61 for orchestra
Souvenirs Op. 62 for orchestra
String Quartet No. 3 in D-flat Op. 96 (Full Score)
Chansons et Danses Op. 50 for wind instruments
Lied for Cello (or Viola) & Orchestra Op. 19
String Quartet No. 1 in D Op. 35
Piano Quintet in G minor Op. 81 (score & parts)
Saugefleurie Op. 21 for orchestra
Fantaisie pour orchestre et hautbois principal sur des thèmes populaires français Op. 31
Karadec. Petite Suite Op. 34 for orchestra
Fervaal Op. 40 (in two volumes with French libretto)
String Quartet No.2 in E major Op.45 (parts)
Médée Suite for orchestra op. 47
Poème de Rivages, Orchestral Suite
Lied for Cello (or Viola) & Orchestra Op. 19 (Piano Reduction/Solo)
Fervaal Op. 40 (Vocal score with French libretto)
Diptyque méditerranéen, Op. 87 for orchestra
Tableaux de voyage Op. 36 for orchestra
Suite en ré dans le style ancien Op. 24 for small orchestra
Wallenstein. Trilogie d’après le poème dramatique de Schiller Op. 12 for orchestra
String Quartet No. 2 in E Op. 45 (Full Score)
Fervaal – Introduction du 1er Acte
La Légende de Saint Christophe, drame sacré en 3 actes et 8 tableaux
La Légende de Saint Christophe, drame sacré en 3 actes et 8 tableaux (Vocal Score with French libretto)
Third Symphony Op. 70 “Short Symphony in a Time of War”
Le Chant de la Cloche Op. 18, dramatic legend in a prologue and seven pictures (with French libretto)
Le Chant de la Cloche Op. 18, dramatic legend in a prologue and seven pictures (Vocal score with French & German libretto)
L’Étranger, Action musicale en deux Actes (with French libretto)
L’Étranger, Action musicale en deux Actes (Vocal score with French libretto)
Caucasian Sketches for orchestra, Vol. 1 Op. 10
Caucasian Sketches for orchestra, Vol. 2: Iveria Op. 42
Jubilee March Op. 67
Türkische Fragmente (Turkish Sketches) Op. 62 for orchestra
Cello Concerto Op. 4 No. 9 in F-Dur
Cello Concerto: Three Psalms for Cello and Orchestra
Der 100. Psalm op. 60