Progressing melodically by intervals of a second.

Roget 43: joined etc. v.; joint; conjoint, conjunct; corporate, compact; hand in hand.    firm, fast, close, tight, taut, taught, secure, set, intervolved^†; inseparable, indissoluble, insecable^†, severable.    ... show more

Bound in close association.

Involving the joint activity of two or more:
— The conjunct influence of fire and strong wind.
— The conjunctive focus of political opposition.

synonyms: concerted, conjunctive, cooperative.

Polish: kooperatywny, kooperacyjny