Miller, Samuel D. (Autumn 1973), "Guido d'Arezzo: Medieval Musician and Educator", Journal of Research in Music Education, 21 (3), MENC_ The National Association for Music Education: 239–45, doi:10.2307/3345093, JSTOR3345093, S2CID143833782
Miller, Samuel D. (Autumn 1973), "Guido d'Arezzo: Medieval Musician and Educator", Journal of Research in Music Education, 21 (3), MENC_ The National Association for Music Education: 239–45, doi:10.2307/3345093, JSTOR3345093, S2CID143833782
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Miller, Samuel D. (Autumn 1973), "Guido d'Arezzo: Medieval Musician and Educator", Journal of Research in Music Education, 21 (3), MENC_ The National Association for Music Education: 239–45, doi:10.2307/3345093, JSTOR3345093, S2CID143833782