Five Meditations on Modes by Bertold Hummel for piano, Op. 3 (also arranged for two pianos as Op. 3a) (1975)

epitaph for 3 groups of musicians distributed throughout the space and 3 conductors (2002)
dedicated to the memory of Bertold Hummel

Choral prelude based on Bertold Hummel’s Passion song “Du schweigst Herr” (1965) (2002)

Come, Sing to Our God (2002) for choir, organ and wind instruments
Dedicated with gratitude to my teacher Bertold Hummel, who passed away on 9 August 2002

My House Had Already Found Peace – Cantata for soprano, flute, accordion, two guitars and cello, based on a poem by John of the Cross (2003)
in memoriam Bertold Hummel

In the Silence of Contemplation for organ and percussion (2012)
in memoriam Bertold Hummel

Piece for two pianos
For Bertold Hummel’s 75th birthday (2000)

Gilgamesh, Fragments for baritone, violin, piano and strings (2002)
In memory of Bertold Hummel

Waltz for Two Pianos (2000)
Bertold Hummel on his 75th birthday

Adagio memore for strings (2003)

On the Beautiful Blue Danube
Chamber opera based on a libretto by Elisabeth Gutjahr (1993)
Dedicated to my esteemed colleague and namesake Bertold Hummel

Behind the Quietness for flute, clarinet and string quartet (2002)
In memory of my father

Open Expanses for Double Bass and Piano (1996)

Dark Question (2003) for 4 double basses
in memoriam Bertold Hummel

“Merci, mes chers amis…” (2021) for piano

Hummel-Minute for two pianos (2000)

Canzone for B. H. for viola da gamba and harpsichord (2003)

For the 68th birthday, for voice and piano (1993)

Fatum for solo clarinet (1995)

Entasis I for 3 percussionists

Paulus vocatus, motet for eight-part mixed choir (based on 1 Corinthians 1:15)
in memoriam Bertold Hummel

SPRUCH for Bertold Hummel for two pianos (2000)

Roman Sleep I for mezzo-soprano, alto, 2 flutes, 4 cellos, piano, vibraphone, percussion, loudspeakers and tape (1985)

March for Two Pianos (2000)
Bertold Hummel on his 75th birthday

Postscript for solo oboe, Op. 40 (2003)
in memoriam Bertold Hummel

Autumn Song, Homage to Robert Schumann, Op. 18, for orchestra (1989)
Dedicated to Bertold Hummel

C'era Una Volta ... dedicated to Bertold Hummel for Marimba solo (C-marimba 5 octaves)

Cathedral I-III, a farewell to Bertold Hummel for piano solo (2002)

"Hummel-Minute" – not too fast for two pianos (2000)

Down East for Strings (1984/85)
To my teacher Bertold Hummel on his 60th birthday

Songs for medium voice (baritone) and string quartet based on poems by Monika Taubitz: “Reading in Autumn Leaves”
Bertold Hummel on his 60th birthday

Three Songs by John Keats for mezzosoprano and six instruments Fl, Bklar (B), V, Va, Vc, Klav (2002)
To the memory of Bertold Hummel

A Greeting … for two pianos (2000)

"A small tribute to Mr Bertold H" for two pianos (2000)

Concerto for Saxophone and Orchestra (2012)

These Three Days (text by M.L. Kaschnitz) for soprano and piano
in memoriam Bertold Hummel (2002)