He is a former editor of Music Theory Spectrum, former executive board member of the Society for Music Theory, and recipient of a 2006 Northeast Ohio Council on Higher Education Award for Teaching Excellence.
Alegant has published on a wide range of topics in Music Theory Spectrum, Journal of Music Theory, Perspectives of New Music, Music Analysis, Journal of Music Theory Pedagogy, Intégral, and Nineteenth-Century Music Review.
His book on the twelve-tone music of Luigi Dallapiccola was published by the University of Rochester Press.