Antiphon
Unlike the chant-like verses, the antiphon is more like a short hymn-verse in a regular metre. The tempo of the antiphon is directly related to that of the verse: the one-beat-in-the-bar verse equals the beat unit, typically crotchet (quarter note) or dotted crotchet, of the antiphon. There should be no break between psalm and antiphon: each should follow the other without interruption.
Read more about this topic: Gelineau Psalmody