Iwan Knorr
Iwan Knorr was a German composer and music historian. He was also a music educator, music teacher, and pianist.
Born in Gniew, he spent his childhood in Russia after his parents moved there in 1857. He studied at the Leipzig Conservatory with Ignaz Moscheles, Ernst Friedrich Richter, and Carl Reinecke.
From 1874, Knorr lectured on music at the Kharkiv Music Society, and from 1878 he also taught music theory there. He returned to Germany in 1883 and taught at the Hoch Conservatory in Frankfurt am Main. In 1908, he became the conservatory's director.
His students included Otto Klemperer, Ernest Bloch, Percy Grainger, Cyril Scott, Vladimir Sokalsky, Roger Quilter, and Boris Hamburg.
His time in Ukraine influenced his work. He wrote Ukrainian Love Songs for four voices with piano accompaniment and the two-act opera Dunya, staged in Koblenz in 1904. Knorr also wrote a biography of Pyotr Ilyich Tchaikovsky, published in Berlin in 1900, as well as textbooks on harmony and counterpoint, other musical compositions, and musicological studies.