solfège (sôlfĕzh´) [Fr.] or solfeggio (sōlfĕd´jō) [Ital.], in music, systems of vocal exercises employing the solmization syllables of Guido d'Arezzo (ut, re, mi, fa, sol, la). Solfège has the dual purpose of vocalization and practice in sight reading. The term has often been used loosely to cover training in the various fundamentals of music.