The German conductor, Horst Meinardus, studied church music in Köln with Professor Michael Schneider, and at the same time as a conductor of a church choirs in Bonn.
After finishing his studies, Horst Meinardus acquired himself soon successes as a conductor of choir concerts. In 1973 his sphere of activity experienced a substantial extension by his engagement by Köln Opera, where he worked as a second director of choir of the opera choir renowned all over Germany. After short training activity at Robert-Schumann-Institut in Düsseldorf, Horst Meinardus became in 1978 lecturer at the Staatlichen Hochschule für Musik in Köln. He led the Opernchorschule and a class for oratorio ensemble.
In January 1990, Horst Meinardus became first conductor of Philharmonischer Chor Köln. Before about 14 years as second conductor of the Philharmonischer Chor Köln, he was connected with this choir from his former youth times, first as a simple member, than musical assistant of Professor Philipp Röhl, who was as choir educator also his teacher at the Hochschule für Musik in Köln. The repertoire of the Philharmonischer Chor Köln, which had been developed and maintained by Professor Philipp Röhl for many years, was extended by Horst Meinardus by performances of works as J.S. Bach's Johannes-Passion (BWV 245), Mendelssohn's Elias, Orff's Carmina Burana and by rehearsing a cycle of George Frideric Handel oratorios, and performing them in Köln to a great acclaim in the G.F. Handel year 1985.
In the summer of 1999, Horst Meinardus was appointed as Professor at the Staatliche Hochschule für Musik in Köln.
On invitation of the Tokyo Oratorio Society professor Horst Meinardus stayed in the summer 2000 for three weeks in Japan, in order to perform in Tokyo and Kawasaki there choral three concerts of Mozart's Requiem, Josef Rheinberger's Requiem in B minor, J.S. Bach's Matthäus-Passion (BWV 244), as well as L.v. Beethoven's Choral Fantasy and Mass in C major. A further invitation after Tokyo followed in 2003 to guest conducting of Schöpfung by J. Haydn and the oratorio Paulus by F. Mendelssohn-Bartholdy.
The Richard Wagner Federation appointed professor Horst Meinardus in October 2001 as honour member.