n. In music:n. The first or gravest note in Guido's scale of music; gamma ut.n. The major scale, whether indicated by notes or syllables, or merely sung.n. A scale on which notes in music are written or printed, consisting of lines and spaces which are named after the first seven letters of the alphabet.n. In old Eng. church music, the key of G. Also gamma.n. Figuratively, the whole scale, range, or compass of a thing.