(b. 1958, Stuttgart).

German composer of mostly chamber, piano, electroacoustic, and multimedia works that have been performed throughout Europe.

Mr. Koepf initially studied patternmaking, but studied piano with Günter Louegk in Stuttgart from 1982–84. He then studied composition and piano at the Hochschule für Musik und Tanz in Cologne from 1984–93.

Among his honours are the Bernd-Alois-Zimmermann-Stipendium from the city of Cologne (1994) and a research grant from the state of North Rhine-Westphalia (1995–97).

He has taught music theory at the Hochschule für Musik und Tanz in Cologne since 2000.

In addition to the works listed below, he has created computer software, films, music machines, print editions, and theoretical texts.

His publisher is Koepf's Editions.

SELECT LIST OF WORKS

ORCHESTRAL:

Stück für Orchester Farben, 1992

CHAMBER MUSIC:

Drei Violinduos, 2 violins, 1990

Stück für drei Violoncelli, 3 cellos, 1991

Module (improvisation pieces), any player, 1992 (also version of Modul 5.6 by Christina Fuchs for tenor saxophone, 1992)

Konzentriert Musizieren (Freizeit), trumpet, live electronics, 1998

Playtime, tubular bells (1/2 players), 1999

For Nataschas Bass Flute and Live-Computer, bass flute, computer, 1994–2001

For Alto Flute and Live-Computer, alto flute, computer, 2007–08

PIANO:

Zwei Stücke für Klavier, 1990

Klavierstück Nr. 3, 1991

Klavierstück Nr. 4, 1993

Glockenterror II, 1997

Exhausted, player piano, 1996–2004

Two Different Pieces for Piano, 1997–2006

ORGAN:

Ohne Titel für Orgel, prepared organ, 1992

Hi John! Version 1, computer-controlled pipe organ (48 keys per octave), 1999

Zwei Authentische Stücke für Orgel, 2012

CARILLON:

'99 Melodien' für das Glockenspiel im Kölner Ratsturm, 1994–96

ELECTROACOUSTIC:

Beuys Goes Pythagoras, fixed media, 2000

Creating Reality, fixed media, 2003 (concert version of multimedia work)

Square, fixed media, 2003, revised 2005

Inflector, computer, 2005

Clarence Barlow? A Cerebral Clown!, fixed media, 2006

Tonspiel, fixed media, 2011

MULTIMEDIA/PERFORMANCE:

deutschland, film, 1992

Klaviermaschine (sound installation/performance), player, 1994

Bassmaschine (sound installation/performance), player, 1994

Interfering Bass Machines (sound installation), bass machines, computer, 1999

THE MSQ PROJECT, Internet, 1998–2000

Integration, film, 1992–2002

Science Fiction 5, film, 1994–2003

Creating Reality (audiovisual installation), fixed media, film (by Jungwha Jung), 2003 (also concert version for fixed media)

DISCOGRAPHY

Ohne Titel für Orgel (excerpt). (Feedback Studio Verlag, 1996)

Beuys Goes Pythagoras. (Self-released, 2000)

Konzentriert Musizieren (Freizeit). Axel Dörner, trumpet (textur, 2001)

Bassmaschine. Siegfried Koepf, player (Cybele Records/Feedback Studio Verlag: 960303, 2003)

Creating Reality (concert version). (Self-released, 2003)

Square. (Mark e. V., 2010)