NiNTENDOMiNATi0N has posted a video on Youtube highlighting the full dungeon theme in A Link Between Worlds. The dungeon theme is essentially an eerie remix of the original Sanctuary Dungeon theme. Personally, I think the music fits the location of a dungeon very well; it sets a mysterious, eerie, and unsettling tone for the location. It will be interesting to see whether the dungeons in Lorule will feature a remix of the Dark World dungeon theme, or something completely different.
Full dungeon theme from A Link Between Worlds