Works
▪ Concerto for Piano and Orchestra in B Minor op. 1 (1987)
▪ Piano Sonata No. 1 in D Minor op. 2 (1988/1995/2020)
▪ 24 Préludes für Klavier op. 3 (1996)
▪ Streichquartett e-Moll op. 4 (1989)
▪ Sonata for Violin and Piano in G Major op. 5 (1989)
▪ Sonata for Violoncello and Piano in F Minor op. 6 (1989)
▪ Piano Sonata No. 2 in E Minor op. 7 (1990)
▪ 8 Organ Pieces op. 8b (1989)
▪ Piano Sonata No. 3 in C Minor op. 9 (1990)
▪ Symphony in D Major „Summer in the Eifel" for Large Orchestra op. 10 (1990) (1st Prize at a youth composition competition
„Jugend komponiert", 1990)
▪ „The Magic Lake", a fantastic story with 36 Piano Pieces (1991) (1st Prize at a youth composition competition
„Jugend komponiert", 1992)
▪ Romantic Mass for mixed choir and organ in E Major op. 11 (1991–1995)
▪ Song of the Red Roses for Piano (1992)
▪ Piano Sonata No. 4 in F Sharp Minor op. 12 (1993)
▪ 3 Berlin Sketches after poems of Theophil Krajewski for Voice and Piano (1993/1994)
▪ Concertino for Organ and Chamber Orchestra (1993)
▪ Variations and Fugue on the hymn tune "Cassius and Florentius" of Bonn´s Minster Basilica for organ (1993)
▪ 1st Organ Symphony (1993)
▪ Memorial for a died friend for Clarinet and Organ (1994)
▪ „Der Rosenhag" after poems by Theophil Krajewski for Voice and Piano (1994–2002)
▪ Suite francaise for organ (1995)
▪ 2 Marian Motets for mixed choir (4-7 voices) (1995)
▪ Cologne Cathedral Festival Mass for Soprano solo, Female Choir, Brass Orchestra, Percussion and Organ (1997)
▪ Organ transcription of the "Tema con Variazioni" in G Major KV 501 by Wolfgang Amadeus Mozart (1999)
▪ 24 Preludes and Fugues for organ (2001–03)
▪ Toccata Buxtehudina for organ (2001)
▪ 7 Easy chorale preludes on Polish hymn tunes for organ (2002)
▪ 5 Minnelieder for Voice and Piano after Walther von der Vogelweide (2002)
▪ Missa puellarum for equal treble voices and organ (2002)
▪ Cantata Mariana ad inaugurationem Arae Mindensis for mixed choir and organ (2002)
▪ Hymn tune motet „Nun danket alle Gott" for mixed chorus (3 voices) (2002)
▪ Nocturne for organ (2002)
▪ Hommage à Flor Peeters for organ (2003)
▪ Trois Carillons for organ (2004)
▪ Chorale Partita on „Wunderschön prächtige" for organ (2004)
▪ 4 Chorale Partitas on Advent hymn tunes: „Komm, Du Heiland aller Welt" (2005), „O Heiland, reiß´ die Himmel auf" (2005, überarbeitet 2017), „Creator alme Siderum" (2005) und „Maria durch ein´ Dornwald ging" (2005) for organ
▪ British Suite for Organ (2005)
▪ 2 Chorale Preludes in the style of Robert Schumann for organ(2006)
▪ Theme, Variations, Fugue and Final in the style of W. A. Mozart for organ (2006)
▪ Hommage à Jean Langlais for organ (2007)
▪ 7 Sketches for Trumpet and Organ (2007)
▪ 10 Chorale Preludes on Marian Hymn Tunes for organ (2008)
▪ Variations on an Old Polish Dance for organ (2008)
▪ Organ transcription of the „Variations sérieuses" op. 54 by Felix Mendelssohn Bartholdy (2009)
▪ Cheerful organ variations on the St. Nicolas´ hymn tune „Lasst uns froh und munter sein" (2009)
▪ The seven O-Antiphons for organ (2009)
▪ Fantasia on "Ave Maris Stella" (2009)
▪ Piano Piece „I lost my heart in New York" (2010)
▪ 10 Chorale Preludes on Advent Hymn tunes (2010)
▪ Variaciones sinfonicas sobre el canto de Alcala de los santos ninos para órgano (Symphonic Variations on the hymn tune about the holy children of Alcalà for organ) (2011)
▪ Variaciones sobre una canción japones para órgano (Easy organ variations on a Japanese tune) (2012)
▪ Leonhard´s Piano Album (Piano Pieces in different styles) (2012)
▪ Seven Chorale Preludes on British and American Hymn Tunes for organ (2012)
▪ American Trilogy for organ (2012)
▪ Organ transcription of the 2nd movement „Largo ma non tanto" of the Double Concerto for two violins and orchestra BWV 1043 by Johann Sebastian Bach (2012)
▪ Organ transcription of the Aria „Meine Seele hört im Sehen" von Georg Friedrich Händel (2013)
▪ Seven Chorale Preludes and organ settings of hymn tunes, published in the "Orgelbuch der Domorganisten" (Bärenreiter)
▪ 10 Chorale Preludes on Christmas Carols (2010)
▪ Organ transcription of the „Polka de W.R" by Serge Rachmaninov (2015)
▪ 2nd Organ Symphony (2015)
▪ Pietà for organ (2017)
▪ Symphonic Variations on the Lutheran and Marian hymn tune "Sie ist mir lieb, die werte Magd" for organ (2017)
▪ "Picture Book Andalusia" - 18 Organ Pieces about a paradise (2018)
▪ Orchestra transcription of the 5 Christmas Carols by P. Willibrord Ballmann Osb (2018) (originally composed for voice and piano)
▪ Orchestra transcription of the Christmas Carols by Engelbert Humperdinck (2018) (originally composed for voice and piano)
▪ Little solo cantata for solo soprano and chamber orchestra on "Silent Night, Holy Night" (2018)
▪ 10 Chorale Preludes and organ settings of hymn tunes, published in the "Oekumenisches Orgelbuch" (Baerenreiter)
▪ Five Tunes for Organ (2005 / 2020)
▪ Roots and Traces for Organ (2020)
▪ Beethoven-Jubiläumstoccata for Organ (2020)
▪ Cantata on a St. Margret´s tune for choir, brass, percussion and organ, commissioned composition from the St. Margret´s parish in Munich (2020)
