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Music Theory

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Theme & Variations Form

ln this form, a musical theme is stated (the main melody of tne movement),
followed by any number ol varied presentations of that theme. ln subsequent
variations, new countermelodies can be added, and aspects of the theme
(such as key, meter, instrumentation, mood, dynamics, etc.) can be altered.

THEME - VARIATION1 - VARIATION 2 - VARIATION 3 (etc.)

Theme and Variations is found in second movements of many Classic works,
and it is sometimes used in fourth movements.

Sonata Form

Sonata Form
Sonata form (also called "sonata-allegro form") is a musical debate vvithin a single
movement based on the conflict and ultimate resolution of tvvo opposing key centers.
Sonata form is the First movement form of virtually every Classic instrumental work,
though It may be used in other movements as vvell.) This unigue Classic form has
three distinct dramatic aspects vvithin a binary harmonic plan:

Basic Musical Forms

The large-scale form of a musical composition can be projected via any combination of the musical elements (rhythm, dynamics, melody, tone color, texture, form). Traditionally, however, musical form in Western music has been primarily associated with the order of melodic, harmonic, and rhythmic events (or the text) in a piece. Letters (i.e. A, B, C) are used to designate musical divions brought about by the repitition of melodic material or the presentation of new, contrasting material. Some of the most common musical forms are described below:

Basic Harmony

David Loberg Code, Western Michigan University

Harmony parts are made by stringing together triads built on different scale degrees. 

Triadic Harmony: The three most common triads used to harmonize a melody are the tonic, subdominant, and dominant triads: I, IV, and V. 

In a major key, all three of these will be major triads.

 

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