We're going to build a media player to let the user control playing a song.
2) Add a sprite to be a pause button, and make it pause the sound when you click it.
3) Add a sprite to be a play button, and make it play the sound when you click it.
4) Add a sprite to be a stop button, and make it stop the sound when you click it. (Stop will reset the sound back to the beginning when you play it next)
5) Bonus: Add a display for the user to see if the sound is currently paused.
7) Add a way to adjust the volume of the sound. This could be sprites to click that adjust the volume up/down, choosing keys that will adjust the volume, or (as a challenge) a slider that can be clicked and/or dragged to adjust the volume.
8) Display and allow adjustment of the current time of your sound, similar to the volume.
9) Challenge: Can you allow the user to swap between different sounds? How much code can be shared between different sounds?