Which preposition to use with euphony

of Occurrences 7%

French, on the contrary, is spoken a good deal; but the Milanese, male and female, among one another, speak invariably the patois of the country, which has more analogy to the French than to the Italian, but without the grace or euphony of either.

by Occurrences 1%

Can you improve the euphony by a different choice of words?) 18.

Which preposition to use with  euphony