(Although Finn Mortensen's later music lies beyond the normal ambit of this forum I am adding this list because of previous discussion of the early Symphony.)
FINN MORTENSEN: A CATALOGUE OF THE ORCHESTRAL MUSIC
1953: Symphony (No.1), op.5: 37 minutes + (Aurora and Simax cds)
1957: Pezzo orchestrale, op.12: 7 minutes + (Simax cd)
1961: "Evolution" for orchestra, op.23: 6 minutes + (Simax cd)
1962: "Klangfarger" ("Tone Colours") for orchestra, op.24: 7 minutes
1963: Piano Concerto, op.25: 10 minutes + (Aurora cd)
1965-66: Fantasy for Piano and Orchestra, op.27: 12 minutes + (Aurora cd)
1967:"Per Orchestra", op. 30: 15 minutes + (Aurora and Simax cds)
1971: Music for Amateur String Players for string orchestra, op. 22, No.5: 3 minutes
1974-75: "Hedda"-Cavalcade for orchestra, op.42: 10 minutes
1976: Adagio and Fugue for 16 horns, op.43: 6 minutes
1977: Fantasy for Violin and Orchestra, op.45: 12 minutes