Malou Haine is honorary professor of musicology at the Université libre de Bruxelles and honorary curator of the Musical Instrument Museum in Brussels. She was a researcher at the Belgian Federal Science Policy (2009-2012).
Since 2009, she is co-director of the MusicologieS collection at the Éditions Vrin (Paris), after having directed alone the collection Musique/musicologie at the Éditions Pierre Mardaga in Liège (1985-2007) and that of Pepetuum mobile at Symétrie (Lyon) (2007-2009). She is the author or co-author of about twenty books, and has directed about fifteen others. She has written more than a hundred articles in specialized journals and has participated in about a hundred international conferences .
"Visiting Professor at Urbana-Champaign (Ill. USA) in 1986, she also taught at the Ecole normale supérieure de Paris in 1991, 1993 and 1998, and at the University of Liège from 1984 to 1993.
Her work focuses on musical life in France and Belgium from 1750 to 1950, both in its institutional and social aspects. She has devoted herself more specifically to musical instruments, from "Liszt in France and Belgium" to "Jean Cocteau and music" or "Le groupe des Six" or "Les musiciens de la famille Servais -Van Dyck". She has devoted several works to the writings of musicians. She has also translated eight books on architecture and music and has written several hundred dictionary articles.
Since 2012, she is interested in the place of music and instruments in the Encyclopedia of Diderot and D'Alembert, in the specialized dictionaries of the Encyclopédie méthodique and, more generally, in the lexicographical dictionaries of the 18th century.