C 745 ] 
of it, and now again exceeding it, may give to the 
ear the impreflion of another mode (23).” 
“ For of the mutations in refpedt to tone, fo called, 
there are two principal differences, the one by which 
we run through the whole melos in an acuter tenfion, 
or again in a graver, preferving always the fucceffion 
of the fpecies. The other, by which there is an al- 
teration, not of the whole melos in its tenfion, but 
only of a part thereof, from the fucceffion it fet out 
with. Wherefore, this laft might be called rather a 
mutation of the melos, than of the tone ; for, ac- 
cording to the former, the melos is not altered, but 
the tone (tenfion) of the whole; whereas, according 
to the latter, the melos varies from its proper order, 
and the tenfion varies not as tenfion, but as on ac- 
count of the melos. Hence the former does not 
ftrike the fenfe with an idea of that alteration, ac- 
cording to power, by which the ethos is changed, 
but only of an alteration in refpedt to the being acuter 
or graver; whereas the latter caufes the fenfe to drop 
from the ufual and expe&ed melos, the fucceffion 
being preferved fome time, and then making a tran- 
(23) ’OvJ'z p> zvzmv t CapvTzpav n o^uTzpav <puvuv dv Tnv 
vvtojiv Hard r t ovov yzjoCoKtis yiyzvvnyzvtir otxotz 'opos tyiv tqiov- 
7 iw S'lOtpocc/.v t) t opyovuv oA&j' L7nTa.au, >) txokiv bvz<nz dcxopKei, y.r,~ 
dzy.ictf yz cP^AKoyki 1 to y.iA<&> &jrrt\iK vy.zvYit, otov ohov oy.otwf 
vivo T C'ctpvtpuvoTZpeov n T o^v’puvoTzpcoy dyovtauv S'l&'tipaiviTjoi’ athK 
ZVZKO TS KOTO TtjV [AlAV (puVVV TO OVTO [Xih& 7X0TZ pi T 0^V7tpuT 
T OTOV dp'yplA^OV, 7T0TZ c H T CopvTZpo", T&7T11V T/I'O 7X OS7nfji' 
Awl' tt>T y.vnoWi aspo's inctTZ^y. to axi^o rk yttes crvvA&a.pTi^i&oi to 
( paws in t r t'ovov IvoAhoyolc aAA* eiti Tx^oKojoAnyeiV, c/m p §tf.~ 
Tle*, to f <poi’n< Txifo-n rk dk yzAw urn 0 to Lvoy7to, to 7 k yzAvf 
r. /M *1 ^ \,u» (M . J # <v< A ! f* r 
Trtey. ( ro d" <puvvf 
vnr ua]i To i^opyjif itpopyuffov th JVaraVw f ipovttf yi 
Aof, T/i p' amK&TTov Lv r y{jo£oAolt t Txri q c/mAoySovov, tTipu tj£hs 
forfajtay Txopzyj* r ctKooif. Ptol, Harm. lib. ii. c. 7 
firicn 
