(Wait for the music, which starts at about 0:28 in this video.)
"Merry Widow Waltz" and other popular melodies of a century ago. The entire Rhino Records CD, featuring Ian Whitcomb and five other musicians playing in reasonably contemporary arrangements and style, and the accompanying booklet, can also be recommended.
Video excerpts and photos.
A short list of Titanic books and a text excerpt are here