Add the rest of the trailer music.

[CharlieXGaming]

I cannot express in words how badly I want to use the soundtracks for the last 4 pack trailers in my own content. We have the trailer music up until the Twilight Pack and it’s killing me that we don’t have Grasslands, Arid, Tropical or Oceania in yet. Just a small thing that would go such a long way. Please frontier.