This list is manually maintained, therefore some of the available pieces may not yet be linked from this page. For an automatically generated alphabetical list of all available pieces, please see Category:Wellesz, Egon. A list of works in the composer category that are not included here can be found on this page. Please consult the manual of style for creating composer work lists.
Op.44 - Die Bakchantinnen (1930 or earlier), libretto by the composer after Euripides, opera in 2 acts.
Op.44a - Hymne der Agave. Concert adaptation of Op.44 for soprano and orchestra (1931).
Op.45 - Mitte des Lebens (anonymous texts as well as words by R.A. Schroeder, Angelus Silesius, Alfred Brust and from psalms). Cantata for soprano, mixed chorus and orchestra (1930/31).
Op.46 - 5 kleine Männerchöre (Ludwig Derleth, 1932).
Wenn die Rebe wieder blüht.
Lernt den reinen Text der Liebe.
Willst du´s erzwingen?
Seele, was zagst du, verzehrst Dich in Sorgen.
Lasset eure Freuden wandern.
Op.47 - 3 geistliche Männerchöre (Rudolf Alexander Schroeder, 1932).
Vor Morgen, o Herr, die Nacht ist ungewiss.
Du musst es lernen.
Advent.
Op.48 - Zwei Gesänge (1932) based on poems from Mitte des Lebens by Rudolf Alexander Schröder.
Erst die Mitternacht
An den Abendstern
Op.49 - Piano Concerto (1933, published 1935).
Op.50 - Amor Timido (Pietro Metastasio). Aria for coloratura soprano and small orchestra (1933, published 1935 by UE)
Op.51 - Mass in F minor for 4 voices, mixed chorus and organ (1934).
Op.52 - (5) Sonette der Elisabeth Barrett-Browning for voice and string orchestra (Rainer Maria Rilke, 1935, published 1935).
Op.53 - Prosperos Beschwörungen for orchestra (after The Tempest by William Shakespeare, 1934/1936).
Op.54 - Lied der Welt for voice and orchestra (Hugo von Hofmannsthal, 1936).
Op.55 - Leben Traum und Tod for voice and orchestra (Hugo von Hofmannsthal, 1936).
Op.56 - Suite for violin and piano (1937/1957).
Op.57 - Suite for Solo Flute (1937).
Op.58 - Schönbüheler Messe, mass in C major for female chorus, orchestra and organ (1937).
Op.59 - Quant'è bella Giovinezza (Lorenzo de Medici), frottola for female chorus (1937).
Op.60 - String Quartet No.5 (1943).
Op.61 - The Leaden Echo and the Golden Echo (Gerard Manley Hopkins). Lieder for soprano, clarinet, violin, cello and piano (1944).
Op.62 - Symphony No.1 in C [minor]. (1946. Published 1949.)
Op.62a - Carol 'I sing of a maiden' (15th-century text) for female chorus (1944).
Op.63 - On Time. 3 Songs for Barytone (1946-50).
Ah, Fading Joy (John Dryden).
The Poet and the Day (Elizabeth MacKenzie).
On Time (John Milton).
Op.64 - String Quartet No.6 (1946).
Op.65 - Symphony No.2 in E-flat minor ("English") (1947-48).
Op.66 - String Quartet No.7 (1948).
Op.67 - Octet (1948-49) for clarinet, bassoon, horn, 2 violins, viola, cello and double bass.
Op.68 - Symphony No.3 in A minor (1949-51).
Op.69 - Incognita (1950), libretto by Elizabeth MacKenzie and William Congreve.
Op.70 - Symphony No.4 in G minor ("Austrian") (1951-53).
Op.71 - Proprium Missae for Laetare Sunday, for mixed chorus and organ (1953). Unpublished. (Manuscript has Op.70. See WorldCat.)
Op.72 - Sonata for Violin Solo (1953, rev. 1959).
Op.73 - Suite (1954) for flute, oboe, clarinet, horn and bassoon.
Op.74 - Suite for Clarinet Solo (1954, published 1957).
Op.75 - Symphony No.5 (1955-56).
Op.76 - Suite for Oboe Solo (1956).
Op.77 - Suite for Bassoon Solo (1957).
Op.78 - Fanfare for Horn Solo (1957).
Op.79 - String Quartet No.8 (1957).
Op.80a - Kleine Messe in G (major) for 3 voices (1958).
Op.80b - Alleluia for soprano or tenor solo (or unaccompanied unison chorus and soloists) ("In Resurrectione Domini", 1958).
Op.81 - Quintet for Clarinet and Strings (1959).
Op.82a/b - Lieder aus Wien (Hans Carl Artmann: med ana schwoazzn dintn) 5 lieder for baritone and piano (a) or guitar (b) (1959).
Op.83 - 5 Klavierstücke (1960, published 1962).
Nänie.
Ein Lied.
Bewegung.
Stille.
Der Entschluß.
Op.84 - Violin Concerto (1961).
Op.85 - 4 Songs of Return (Elizabeth Mackenzie, 1961) for soprano and chamber orchestra.
Where suddenly the wanderer comes.
Separate the shrivell´d moon and sightless rides.
The stubble was pale.
Befriend us fortune.
Op.86 - String Trio (1962).
Op.87 - Rhapsody for Viola Solo (1962). (Arranged for guitar solo by E. Bayer.)