[1] In 1932 he graduated with a Master of Arts degree in literature from the University of Genoa; writing a thesis targeted within the field of music history.
[2] He was largely responsible for saving the library's contents from destruction during World War II.
[2] In 1949 Mompellio's role at the Milan Conservatory changed from that of librarian to professor of music history; a position he remained in until 1968.
[2] In 1954 he joined the academic staff of the University of Parma and was made a full time professor there in 1968 when he left his position at the Milan Conservatory.
[2] As a scholar, Mompellio is best remembered for writing biographies on the composers Niccolò Paganini[1] and Sigismondo d'India.