Friedrich Julius Reubke (March 23, 1834 – June 3, 1858) was a German composer, pianist and organist. In his short life — he died at the age of 24 — he composed the Sonata on the 94th Psalm, in C minor, which was and still is considered one of the greatest organ works in the repertoire.
Born in Hausneindorf, a small village in the region of the Harz Mountains, Julius Reubke was the eldest son of organ and piano builder Adolf Reubke (1805-1875). Of Julius's five siblings, two brothers, Emil (1836-1884) and Karl (1840-1860), worked with their father; Emil became a partner in 1860 and owned the company from 1872. His brother Otto (1842-1913) was also a pianist, organist and composer; he prepared the Sonata on the 94th Psalm for its first publication in August 1871. Otto settled in Halle, where he was a professor at the University of Halle, and became its director in 1892. There were also two sisters, Meta and Alma.
Reubke's first musical instruction was in Quedlinburg with Hermann Bönicke (1821-1879). He moved to Berlin in April or October 1851, where he continued his musical education at the conservatory there, which had been founded in November 1850 by Theodor Kullak, with whom he studied piano, Adolf Bernhard Marx, with whom he studied composition, and Julius Stern. In Berlin, he encountered the Neudeutsche Schule with conductor Hans von Bülow and organist Alexander Winterberger, both associated with Franz Liszt.