Complete Encyclopaedia of Music/A/Accenter
Accenter, or ACCENTOR, in the old music, denoted the vocal or instrumental per-former who took the leading part in a duet, trio, quartet, &c. ; one of the three singers in parts, or the person who sang the predominant part in a trio ; the director, or leader, with whom the accentuation of the performance in general chiefly rested.