Data Structures is a prerequisite for Visualizing Music, Tic Tac Toe, and the Helicopter Game.
Time to complete varies quite a bit from classroom to classroom, but we would estimate that Data Structures will take about 4 weeks of class time (with 1 hour of class 5 days a week), and each of the projects (Visualizing Music, Tic Tac Toe, and Helicopter) will take about 1 to 2 weeks.
Breakout will likely take 1 to 2 weeks as well. I would recommend doing Breakout before the supplemental projects. Breakout is a tricky project but it doesn't require knowledge of Data Structures, and it's very satisfying for students to create their own Breakout game from scratch.