Segue

SEGUE

- verb (used without object)

1. to continue at once with the next musical section or composition (often used as a musical direction).

2. to perform in the manner of the preceding section (used as a musical direction).

3. to make a transition from one thing to another smoothly and without interruption.

- noun

4. an uninterrupted transition made between one musical section or composition and another.

5. any smooth, uninterrupted transition from one thing to another.

Here
Numerical segue
Went awry