Thought by most Titanic Historians to likely be the last song that the ships band played as the Titanic sank.
By all accounts the band really did play as the ship was sinking. First inside, then they moved to the outer deck where a small lucky fraction of the passengers climbed into lifeboats
More than 1500 lives were lost, including all of the band members.
Great story on the Titanic's Bandleader HERE