/ Dictionary / Index M M.Mus.Ed.: Meaning and Definition of Find definitions for: M.Mus.Ed. Pronunciation: [key] Master of Music Education. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. M.Mus. MN Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language