paritonius

paritonius [CL par or parare+tonus < τόνος+-ius] , chanter (who establishes a pitch). ~ius, cantor [v. l. quasi paritono cantans] Osb. Glouc. Deriv. 475; tonus componitur ‥ hic ~ius ‥ i. cantor qui parat tonos [v. l. parans tonos cantor] Ib. 575.