Luk Zuur is an old song sung on weddings.
The song is about two sisters, Luk and Buluk. Luk was getting married but on the day of her marriage she died. The mother grieved but made it secret, and wedded the other sister Buluk in her stead.
This is a very sad tragedic song and in it the mother praizes her daughter's beauty.

The song is sung alone or in dialogue style but there is neither dance nor instruments to accompany it.
The melody does not have a strict strophes, falling from the note G to C.