The Emp Theme is a tribal drum song that is played when you near the Emp's village in the great forest in Ultima VII: The Black Gate (DOS). The passive vegetarian emps play a pivotal role in the game.
This song is track 53 in the game's data files.
Emp Theme is not one of the five songs named in the credits, and the game's music files are left untitled. Thankfully, the song was released on the Origin Soundtrack Series, Vol. 2 album which gives it an official title. The song is the first half of track 5, followed by the Gwani Theme.