Rifkin was the first musician in modern times to accord Joplin's music proper respect. His three LP records for Nonesuch in the 1970s, appeared around the same time as Joplin's music was used to great effect by Marvin Hamlisch in the film "The Sting".
For probably the first time in any recording, Rifkin brought serious ability, musicology, and respect to these piano pieces, and helped to establish their significant place in the canons of music and of social history.
Rifkin plays the music "properly", as written, and imposes no faddish styles or embellishments of his own. The recorded sound and the quality of the piano are good.
Those seriously interested in the music of Joplin should have Rifkin's recordings. There are other good recordings now too (and plenty of bad ones), but Rifkin's work has an important place in the history and restoration of this music.