Scott Joplin: Piano Rags is an album featuring Scott Joplin's classic ragtime compositions, performed by pianist Joshua Rifkin. Released in 1970, it helped to spark a revival of interest in ragtime music and brought Joplin's music to a wider audience.
It is likely that the font utilized on the cover is Schneidler Bold Italic, created by F.H. Ernst Schneidler back in 1936. This is a commercial font and you may find further information about it here.