For much of the 18th and 19th centuries, little work was done on organology.
One of the most important organologists of the 20th century was Curt Sachs, who, as well as writing Real-Lexicon der Musikinstrumente (1913) and The History of Musical Instruments (1942), devised with Erich von Hornbostel the Hornbostel-Sachs scheme of instrument classification, published in 1914 (Hornbostel-Sachs).