The Mephisto Rag is a ragtime fantasy grand piano showpiece. Recalling Franz Liszt's Mephisto Waltz throughout the work, the piece consists of three sections: a fantasy on Mephisto Waltz themes, a game in two sections, and a presto finale.

m. 13, RH, beat 3: D-flat (lowest note of the second sixteenth note) m. 35, RH, beat 1-2: the E-flat at the end of the first beat should be tied to the second m. 99, RH, beat 2: remove the E-flat m. 116, LH, beat 3: should be an A-flat instead of G-flat m. 150, RH, beat 4: F-sharp (for the sixth 32nd note)