The Bajoran death chant is a traditional funeral ritual practiced among some conservative Bajorans and is over two hours long. Ro Laren was one Bajoran who was disdainful of the chant. (TNG: "The Next Phase")
Some speculate that the Bajoran rituals seen in DS9: "Battle Lines" and "Shakaar" may be Bajoran death chants.
The ritual performed by Kira Nerys
in "Battle Lines" was described as Bajoran death chant in the script of the episode.