Collocations for harmony - noun

absolute, complete, perfect | reasonable, relative
They''ve lived together in reasonable harmony for many years.

domestic, political, racial, social
On the surface, their life seemed a model of domestic harmony.

achieve | maintain, preserve
They try to maintain harmony between the two communities.

foster, promote
The Church tries to promote racial harmony.

live in

in ~
They work together in harmony.

~ between
They try to foster harmony between different groups of people.

~ with
living in perfect harmony with nature

a sense of harmony
A new sense of harmony developed in the community.

musical | five-part, four-part, etc.
an arrangement with four-part harmony

in ~
to sing in harmony