Black Forest, often simply titled Forest was composed by Todd Porter for Ultima VI: The False Prophet. Despite the name, the song is never actually played specifically in a forest, but rather the song is one of the four random tunes that plays throughout the game after conversations.
The official title comes from the Origin Soundtrack album, however, many people refer to this song as Forest because its file name is Forest.m.
The song can be played on six different sound cards, though the Innovative SSI-2001 and Covox Sound Master soundtracks have yet to be recorded.