antiphonally

/ænˈtɪfənəli/
adverb
  1. In a way that involves two groups singing or responding to each other alternately.
    • The choir performed the psalm antiphonally, with one side answering the other.
    • The two congregations sang antiphonally during the special service.
    • In the cathedral, the monks chanted antiphonally across the nave.
What does "antiphonally" mean? | whatsthatwordmean | whatsthatwordmean