With a collection mostly national, composed of documents dating from the late 18th century until the early 20th century, the Musicology sector works with manuscripts, printed works, textbooks and sacrum and popular content.
It was created in 1983 under the coordination of Prof. Dr. Régis Duprat, when he received the Francisco Curt Lange Collection of musical manuscripts, result of researches conducted by musicologist in the 40s and 50s, in various cities of the State of Minas Gerais. At the time, there was the addition of three more collections coming from Campanha, Ponte Nova and Pitangui, lacking any musicological treatment. Over time, three new collections were incorporated: the Public Archive of the State of Minas Gerais and two families of the city of Ouro Preto.
The sector carries out works for the collection, conservation, cataloging the collections of the Museu da Inconfidência and other institutions, microfilming, research and works transcription, as well as promoting the dissemination of Brazil's musical heritage. So far it released seven books among catalogs, transcribed works, historical records of the seminar and a CD.
As a parallel activity, collaboration has been borrowed for research and cataloging of collections of music bands of the city. Annually is held a meeting of the bands of Ouro Preto and region as well as Seminars for Music seeking to bring together researchers to discuss the topics aimed at fostering the development of the sector. Occasionally organizes thematic exhibitions and provides technical assistance to other repositories of musicals document of the region.