This is a non-profit project I am currently working on. The idea for this came after I watched Tanks for the Memories, May the Best Pet Win and Hearth Breakers. I have done all of the voices, as well as compose the background music and the vocal songs. The vocal song you heard in the trailer is called "Lost" sung by Rainbow Dash. It is one of the original songs in the project. The other one heard was a little reprise of "I'll Fly". The first episode should be coming out soon.
Edit: The first episode is now out. Go to it by this link:
https://www.youtube.com/watch?v=unUp5LUgx7I
Edit: This is now a trailer for the first Arc of the drama. The trailer for the second arc should be coming soon.