What is the tune played in background Game of Thrones season 3 episode 9 during bedding ceremony when they take bride and groom. I am not talking about Rain Castamere?

The tune played during the bedding ceremony in Game of Thrones season 3 episode 9, "The Rains of Castamere", is a variation of "The Bear and the Maiden Fair". This tune is associated with House Mormont and is played on the pipes.

It is not "Rains of Castamere" because that song plays during the Red Wedding massacre later in the episode.

The tune is also used in the Game of Thrones soundtrack and is available online. You can search for "The Bear and the Maiden Fair" on music streaming platforms or on YouTube.