Series Trailer

 is a video made by RosyClozy.

The main purpose of this seems to be an introduction to the characters and plot of the series

Summary
The video starts with the band playing their instruments on a stage, each member getting an individual 'close-up' appearance. Later, there's an introduction of all the characters appearing 2 at a time on the screen. Lastly, there's a clip of Jake, the main protagonist walking towards the music room to audition for it. While he continues walking, a clip of his voice plays talking about how he wants to be a singer but is discouraged by his friends. But in the music club, he felt that he could be himself. He then walks into the music room to see Zander and Milly arguing, Luke and Hailey watching them out of disappointment, and Sean sleeping at his desk.