ottu (p. 82) s. The native bag-pipe which leads in music, ஓரிசைக்குழல். 2. Agreement in time in singing and dancing, தாள வொத்து. 3. Measuring or beating time for singing, &c., ஒத்தறுக்கை. 4. Sounding the key note--as an accompaniment to the music, ஒத்திசை. ஒத்தறுக்க, inf. To beat time generally on the cymbal, sometimes on the hand for regulating music and dancing, தாளம்போட. ஒத்திசை, s. Musical harmony, symphony, concert, ஒத்தஇசை. ஒத்துப்பாட, inf. To sing in concert, in unison, in accordance with the dance. &c. ஒத்துப்பிடிக்க--ஒத்தூத, inf. To sound the key note with the ஒத்து pipe, ஒத்துவாசிக்க. ஒத்துப்போட, inf. To beat the cymbals as an accompaniment to dancing. 10)