The Collaborative International Dictionary
Musicomania
Musicomania \Mu`si*co*ma"ni*a\, n. [Music + mania: cf. F.
musicomanie.] (Med.)
A kind of monomania in which the passion for music becomes so
strong as to derange the intellectual faculties.
--Dunglison.
Wiktionary
musicomania
n. A form of monomania involving an unnatural obsession with music