Descending into dungeons is made a moving experience through the accompanying music themes. Throughout the games, this task was managed with different approaches.
In Ultima III it is clear that music was still a new feature. The dungeon theme is very short and more of a random selection of noises than music.
The dungeon theme of Ultima IV is much more detailed than in Ultima III. The main characteristics of this theme are the constant and rythmic bass strokes and its companion, a very high-pitched metal xylophone.
The main characteristics of this theme, "Halls of Doom," is the high-pitched chorus and its companion, a dark bass instrument. On the Apple II with Mockingboard, this song is played with an organ.
This theme has a rythmic beating of a drum, accompanied by a dark guitar and deep pipe music.
This music was revamped for the SNES.
The Ultima VII dungeon theme is not conventional music. It consists of long passages with a continous bass.