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Piano Sonata in Bb K.333 mvt 1 - Mozart

Summary of the features of the piece, for Edexcel Music AS exam

Hannah Wood

on 17 February 2013

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Transcript of Piano Sonata in Bb K.333 mvt 1 - Mozart

Movement 1 - Mozart Piano Sonata in Bb K.333 Structure and Tonality Background Information • sonata form*
Harmony Uses functional harmony* (eg. b63 perfect cadence) - but with some melodic chromaticism and minor harmonies at start of middle section.
• augmented 6th chords b80 and 82
• diminished 7th chords b67 and 69
• minor version of chord IV (Eb-) b79
Texture • melody dominated homophony* - b71-80
• alberti bass* - b71-80
• 'clear' - first 22 bars are almost entirely 2 part
• chords used to draw attention to beginnings or ends of sections - b23
Melody • mainly in RH
• conjunct
• motivic*
• periodic phrasing* - eg. 8 bar phrase b23-30, answered by 8 bar phrase b32-38
• but... Mozart avoids predictability - eg. opens with 4 bar phrase answered by 6 bars.
• often extended by use of sequence
• opens diatonically*, but chromatic inflections are frequent
• ornaments*:
∆ trill - b150
∆ turn - b164
∆ appoggiaturas (both chromatic - b110 and diatonic - b88) Rhythm and Tempo • simple quadruple time
• anacrusis
• syncopation in 1st subject, and more of tendency to continuous semi-quaver movement in the later stages of the second subject

• 1st movement of a Classical 3-movement sonata
• composed in 1783
• intended as much for domestic/instructional purposes as concert use
Performing Context Instrument • piano - instrument of choice at the time*
• five octave range
• lighter in tone than modern instrument
• allowed Mozart to show off his virtuosity + capable of good dynamic effects

b63-93 Recapitulation
b93-165 First subject 1-10

Transition 10-22
Second subject + Codetta 23-63 Bb major F major Various:
F minor
C minor
G minor
Dominant Preparation Bb major plus... • cadential 6-4 = Ic-V7-I, b57-59*
• accented dissonances on the final chord of a perfect cadence - b63 and 165* * = features that show it was written in the classical period The END
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