The composition has the following
musical structure: :::Introduction AA BB CC Modulation A DD EE. The rag is not in the sequence "AA BB A CC DD" more typical of Joplin. Like the posthumously published "Reflection Rag", it features five themes, but the "Original Rag" delays reentry of the first theme until after the
modulation. The piece is mostly in
G major except for the "C" section, which is in
C major, and the "D" section (marked "Brilliant" in the sheet music), which is in
D major. Ragtime historians have commented on the harmonic similarity between the "D" section of "Original Rags" and the "A" section of H. O. Wheeler's "A Virginny Frolic" published by Carl Hoffman the year before. Blesh appreciated it as "a charming and auspicious beginning to the life work of the master ragtime composer". == See also ==