Wikipedia:
Alexander Julius Paul Dorn (* June 8, 1833 in Riga; † November 27, 1901 in Berlin) was a German composer, choral conductor and music educator.
Alexander Dorn was a son of the better known composer Heinrich Dorn and brother of Otto Dorn. He was trained by his father. He then became a private music teacher in Poland, but for health reasons had to move his residence to Egypt, where he worked as a conductor of German male choral societies in Cairo and later in Alexandria. From 1865, he was conductor of the ''Liedertafel'' in Krefeld. In 1869, he became a teacher of piano at the ''Hochschule für Musik'' in Berlin.
He left behind numerous works, most of which are forgotten today. They include a number of etudes and lighter pieces for piano students, piano concertos (unprinted), works for piano, operettas for female voices, 3 masses for male choir and orchestra, the choral work "Der Blumen Rache" for solos, choir and orchestra, and several songs.
Alexander Dorn died in Berlin in 1901 at the age of 68. He was buried in the ''Cemetery'' II of the ''Jerusalems- und Neue Kirche in front of the ''Halleschen Tor''. The grave is not preserved.
Note: Translated from the German version of Wikipedia into English.
