Musical Formpublic.tepper.cmu.edu/jnh/osherMusicForm.pdf · •Example – Mozart C major piano...
Transcript of Musical Formpublic.tepper.cmu.edu/jnh/osherMusicForm.pdf · •Example – Mozart C major piano...
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Musical Form
Module 2 of Music: Under the Hood
John Hooker
Carnegie Mellon University
Osher Course July 2017
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• Musical forms
• Sonata allegro form
• Example – Mozart C major piano sonata
Outline
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• The main point is not the specific form
– The main point is that the music must be intelligible
– The listener
should not
get lost
Musical Forms
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• Some basic forms
– Binary – AB
• Common in dances
– Sonata allegro – AABA with development
• Best known form in Western music
– Rondo – ABACA
– Sonata rondo – ABA-C-ABA
– Theme and variations
– Passacaglia/chaconne
• Variations over repeating bass
• For example, Richard Rogers’ Blue Moon
Musical Forms
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• Most common musical structure
– Exposition
• Introduce the main musical ideas
• Tonic key
– Development
• Explore implications of main ideas
• Other keys
– Recapitulation
• Return to original ideas with sense of closure
• Tonic key
Musical Forms
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• Block structure common in “classical” period • Haydn, Mozart, etc.
• Organic development more common in “Baroque” period
– Blocks correspond to keys
– Makes for easy listening
• Still the standard today
– Sonata Allegro form
is best known
• 121 of Beatles’ 211 songs
have AABA structure
Musical Forms
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Sonata Allegro Form
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• AABA structure
– AA: Exposition, repeated
• Main theme in tonic
• Secondary theme in dominant
– B: Development
• Multiple keys, usually minor
– A: Recapitulation
• Main theme returns in tonic
• Secondary theme in dominant
– Many variations!
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Sonata Allegro Form
I V V Various
keys I V I I
Diagram of sonata allegro form
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• Basic contradiction?
– Secondary theme in recapitulation is in dominant key.
– How to return to tonic?
Sonata Allegro Form
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• Mozart’s C major piano sonata (1788)
– 1st movement (Allegro)
– Learned by all piano students
– Unusual solution of basic contradiction
Example
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Audio file
Main theme in tonic key
(I - C major)
Secondary theme
in dominant key
(V – G major)
Exposition Tonic key, modulating
to dominant. Repeated.
Modulation to V
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Development Beginning in
v – G minor
Recapitulation
Main theme returns
in subdominant!
(IV – F major)
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Returning to main theme
in IV allows secondary
theme (originally in V) to
be stated in tonic key I
Secondary theme
in tonic key!
(I – C major)
However, Mozart briefly returns
to dominant key of exposition
before reverting to tonic.
Recapitulation and
closing section