Centers/Small Group Rotation
I use music to transition the students when we're in small group rotation. Once the music plays, they know to clean up their stations and move to the next location. By the time the music stops, the students should be beginning the task in their next rotation.
Collecting Papers
Music can help with the collecting of papers too. Just let the students know to pass the papers forward or backward and you should have all papers by the time the music ends.
Getting the Students in Line
Let the students know that it is time to line up and that they should be in a straight, quiet line by the time the music stops.
The most important idea is to not play the entire song, only a snippet. In the beginning, you may start with 90 seconds of a song, then with more practice, the amount of time the music plays should decrease.