Different kinds of outros: (1) deceptive cadence; (2) iv-I; (3) rhythmic fade out; (4) walking down to I. Turnarounds: various versions (simple triads to complex extensions) of vi-ii-V-I. Loops: VII-IV-I (a favorite in African American churches).
Outros, turn arounds, and loops can also have a profound effect upon worship. They too allow for flexibility in worship, for following the Spirit, and for doing what is fitting and appropriate at the moment.
The word “outro” is a standard term among commercial musicians for an extension, tag,or coda to the final ending. A “turnaround” is an extension at the end, which leads back to the “head” (beginning). A “loop” is a phrase a few measures long that is repeated again and again for emphasis, usually toward the middle of the piece.