§ Ragtime Theory

• John Valerio: Stride and Swing Piano
• Left hand: four beats per measure, alternate bass note and chord.
• right hand: plays melodies at twice the speed of the left.
• Right hand is grouped into additive rhythms : 3+2+3, or 3+3+3.

§ Harmonization With Respect to Example

• Mary Had a Little Lamb: Forward Rag Roll
• Learn to Play ragtime
• Good ragtime ornament: To go to C Eb G, play the Ddim first, with D Ab, which resolves to Eb G. see that D = Ebb, which is the flat third, and G = Ab, which is the 6th of the C minor scale. This gives me more reason to like Ddim!
• harmonize with respect to 6ths. (e.g. to play $A$, play a $C$ below it as well).
• Next, when playing e.g. F, play an Eb (the 7th) below it.
• Ragtime ornament: To play Bb D F when playing F, flatten the third, giving Db G, and then play what we wanted to start with D F. So we play Db G followed by D F. This plays well when we want to play the 6th (i.e. the G over the Bb).
• Can add a sixth to a major chord, so when playing F major ( F A C), can add a D.
• Harmonize with the third of the chord.
• To play G, walk up chord tones, so can play D G, Eb G, E G to walk up.
• March style left hand chords: In 4 quarter beats, play root note (A), play chord above (CEA), play 3rd, but play it below the root note (C), then play chord again (CEA).

§ Harmony

• I, IV, V7
• dim7th, secondary dominant
• Joplin used chromatically altered chords.
• Most commonly, a minor triad on top of a IV
• Also, chords built on flat-VI, either as triads or as augmented 6th chords.
• This can be seen as dominant 7th chords build on the flat-VI note of the major scale degree.