The "Missouri Waltz", became the state song of Missouri under an act adopted by the General Assembly on June 30, 1949. Lee Edgar Settle, a well known ragtime piano player wrote and played, The Graveyard Waltz, which was the actual melody for the "Missouri Waltz" was first published in 1914.
Sales increased substantially after Missourian Harry S. Truman became president, and it was reported that the "Missouri Waltz" was his favorite song. Although, when asked about his feelings the following reply was published by the White House:
"President's attitude towards the song? He can take it or leave it. Is it really his favorite? No. Does he play it often? No. Is Margaret ever heard singing it? No. What is the President's reaction to the song's adoption as the Missouri as state song? See answer to first question."
The song is played by the University of Missouri's Marching Mizzou at every home football game to a unique marching style in 3/4 time.