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Interruption Forms (Unterbrchung)

Interruption Forms (Unterbrchung). Interruption Forms ( Unterbrechung). I. Basic Features. A. Descent of Fundamental Line breaks off at ^2 over dominant harmony. B. Entire descent begins again from same initial tone (head tone). C. Creates two parts called first and second branches.

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Interruption Forms (Unterbrchung)

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  1. Interruption Forms (Unterbrchung)

  2. Interruption Forms (Unterbrechung) I. Basic Features A. Descent of Fundamental Line breaks off at ^2 over dominant harmony B. Entire descent begins again from same initial tone (head tone) C. Creates two parts called first and second branches D. First branch is open (ends on V); 2nd branch closed (tonic close)

  3. II. Recognizing Interruptions A. At the Background 1. Return of opening melody halfway through or later 2. Ternary (ABA) or Rounded Binary (||: A :|| B A’ :|| ) forms I-V-I 3. Very long dominant prolongations 4. Pieces with two similar halves: 1st open I-V, 2nd closed I-V-I 5. Many binary (||: A :|| B :|| ) forms 6. Student at back of room appears to wake up, yawn, and raise hand

  4. II. Recognizing Interruptions B. In the Middleground 1. Open (I-V) phrases and periods 2. Graphing options

  5. III. The Interruption Section The interruption at ^2 over V prolongs the dominant (can be brief or extremely long) B. Natural ^4 common near end of interruption section. WHY?

  6. IV. Typical Prolongationsat the First Middleground

  7. V. Common “Outer Forms” Created by Interruption Patterns Closed Binary Form A | B 1. Two parts, both usually repeated 2. First section closes in tonic; dominant established early in second half 3. Tonic returns in second half but w/o obvious melodic return A B Graph showing: repeats; melodic material (A, B); chords (roman); and fundamental line

  8. B. Open Binary Form A | B 1. Two parts, both usually repeated 2. First section closes in dominant 3. Tonic returns late in second half, but w/o obvious melodic return to A A B

  9. Rounded Binary Form ||: A :||: B A’ :|| I - V______ I-V-I 1. Two parts, both repeated 2. First section closes in dominant 3. Return of tonic in second half coincides with return of opening melodic material Produce a graph by adding one thing to your last one.

  10. D. Closed Ternary Form (ABA’) 1. ABA form: A section closes in tonic 2. B Section opens on and prolongs Dominant 3. Repeat of A = closed I-V-I Now show likely middle ground for A section and ^4 to set up return to A’

  11. Open Ternary Forms (ABA) 1. ABA form: A section is open: closes on dominant 2. B section prolongs V

  12. F. Two Part Song Form (AA’) 1. AA’ Form 2. Two parallel parts: one open I-V the other closed I-V-I

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