Silver Swan Rag

It is the only known Joplin composition to be originally released on piano roll instead of in musical notation.

In 1970, a copy of the National roll (which did not credit Joplin) was discovered in the garage of a collector.

While some doubted its authenticity, the piece was transcribed into musical notation for inclusion in Vera Brodsky Lawrence's The Collected Works of Scott Joplin, published in 1971.

The copyright for "Silver Swan Rag" was assigned to the Lottie Joplin Thomas Trust.

Later in the 1970s, concerns about the piece's authenticity were allayed by the discovery of the QRS roll, which credited Joplin as the composer.