har·mo·ny 
/ˈhɑɚməni/ noun
plural har·mo·nies /ˈhɑɚməni/ noun 1 : the combination of different musical notes played or sung at the same time to produce a pleasing sound [noncount] ▪ She taught him how to sing harmony. [=how to sing notes that combined with other notes in a pleasing way] — often used after in ▪ She taught him to sing in harmony. ▪ They sang in perfect harmony. [count] ▪ a song with complicated harmonies and rhythms 2 [singular] : a pleasing combination or arrangement of different things
▪ a harmony of flavors/colors ◊When things are in harmony or when one thing is in harmony with something else, they go together well or they agree with each other very well.
▪ Every part was moving in perfect harmony. ▪ The two machines are linked and working in harmony. ▪ That principle is not in harmony with our ideals. ◊When people are in harmony or in harmony with each other, they live together in a peaceful and friendly way.
▪ She lives in harmony with her neighbors. ◊To bring something into harmony with something else is to change it so that it agrees with or matches something else.
▪ Our proposal has been revised to bring it into harmony with their requirements. ◊When things are out of harmony or when one thing is out of harmony with something else, they do not agree or combine well.
▪ The modern furnishings seem out of harmony with the Victorian architecture. ▪ The governor's statement is totally out of harmony with the mayor's earlier comments.
▪ a harmony of flavors/colors ◊When things are in harmony or when one thing is in harmony with something else, they go together well or they agree with each other very well.
▪ Every part was moving in perfect harmony. ▪ The two machines are linked and working in harmony. ▪ That principle is not in harmony with our ideals. ◊When people are in harmony or in harmony with each other, they live together in a peaceful and friendly way.
▪ She lives in harmony with her neighbors. ◊To bring something into harmony with something else is to change it so that it agrees with or matches something else.
▪ Our proposal has been revised to bring it into harmony with their requirements. ◊When things are out of harmony or when one thing is out of harmony with something else, they do not agree or combine well.
▪ The modern furnishings seem out of harmony with the Victorian architecture. ▪ The governor's statement is totally out of harmony with the mayor's earlier comments.
