A.instruction by word of mouth: generally, instruction, Hp.Praec.13, Cic.Att.15.12.2, D.H. Dem.50, Din.7, Ath.Med. ap. Orib.inc.21.6, S.E.M.1.7; διὰ τὴν κ. τῶν συνόντων by communication with companions, in bad sense, Chrysipp.Stoic.3.54, cf.55, Gal.5.463.
II. accompaniment of the monochord by louder instruments which drown its tune, Ptol.Harm.2.12 (pl.).