Laporte’s earliest compositions, such as the 1954 Piano Sonata, are neoclassical in character but, beginning in the 1960s, his work was increasingly influenced by the Darmstadt avant garde. His style is eclectic, drawing on a range of pitch materials, for example, extending from traditional triads to clusters and microtones, with such contrasting material often alternating within a single piece. Though he often employs twelve-tone technique, this is by no means an exclusive concern, and he often quotes music by earlier composers. For example, his operaDas Schloss, quotes from Berg and Wagner, and the orchestral workNachtmuziek contains citations from Mozart. His Fantasia-Rondino con tema reale for violin and orchestra, composed for the 1989 Queen Elisabeth of Belgium competition, introduces national and royalist symbolism, first by using as tonal centres the notes B, G, and E drawn from the letters of the word "Belgique", second through the use of the Belgian national anthem, and third by the invention for the rondino of a "royal theme" composed of notes drawn from the names of the three most recent royal couples: EliSABetH, ALBErt, LEopolD, AStriD, FABiolA, BouDEwijn.
Compositions (selective list)
Piano Sonata
Fugue in the Phrygian Mode, for organ
Ostinato, for organ
Sequenza I, for solo clarinet
Sequenza II, for three clarinets and bass clarinet
Jubilus, for brass and percussion
Ascension, for piano
Ludus fragilis, for solo oboe
Story: Actus quasi-tragicus, for violin, viola, violoncello, and harpsichord
Inclinations, for solo flute
De Profundis, for a cappella choir
Le morte chitarre, for tenor, flute, and strings
Reflections, for solo clarinet
Nachtmuziek, for orchestra
La vita non è sogno, tenor, bass, narrator, chorus, and orchestra
Icarus' flight, for piano and twelve instruments
Transit, for 48 strings
Das Schloss, opera in 3 acts, libretto by Laporte, after M. Brod’s adaptation of Franz Kafka's novel of the same title
Two Suites from Das Schloss, for orchestra
Fantasia-Rondino con tema reale, for violin and orchestra
De ekster op de galg, concert overture, after Breughel
Testamento de otoño, for baritone, harp, and strings
Winter Pastorale, for four bassoons and contrabassoon
Seven Visions from the Apocalypse of Saint John, with an Introduction and Seven Trumpet-calls, for trumpet and organ
Passacaglia serena, for orchestra
Trois pièces, for piano
Toccataglia, for piano
Rieten-Ritueel, for 4 oboes, 2 oboes d'amore, 2 horns, bassoon, and contrabassoon
Selected recordings
André Laporte: Chamber Music. Walter Boeykens, clarinet; Jan Guns, bass clarinet; Lieven van de Walle, violoncello; Antwerp Clarinet Quartet; Flemish New Music Group; Marc de Smed, conductor. Belgium: René Gailly International Productions, 1986.
André Laporte: Das Schloss. Lena Lootens, Emily Rawlins, sopranos; Lucienne van Deyck, mezzo-soprano; Johanna Dur, contralto; Christoph Homberger, Philip Sheffield, Donald George, Wilhelm Richter, tenors; Bjørn Waag, Mario Taghadossi, baritones; George-Emil Crasnaru, Marcel Rosca, basses; BRTN-Mens-Choir; BRTN Philharmonic Orchestra Brussels; Alexander Rahbari, conductor. Recorded at the Magdalena Hall, Brussels, 25 September–7 October 1995. 2-CD set. DICD 920375/920376. : Koch Discover International, 1997.
Symphonic and Vocal Works. including "The Magpie on the Gallows" concerto, La vita non è sogno, Testamento de otoño, and opera Das Schloss with Italian Spanish and German libretto. 4CDs. Fuga Libera