Introducing 

Prezi AI.

Your new presentation assistant.

Refine, enhance, and tailor your content, source relevant images, and edit visuals quicker than ever before.

Loading…
Transcript

Dynamics

Section 4: The Medial Caesura - The First Principles

  • Any attention to dynamics is uncommon
  • Causes drive collapse
  • S following dynamically weak MC can compensate

Neighbor Motion

Hammer Blows

  • Prolonging structural dominant
  • V 6/4 - 5-6-5 + 3-4-3
  • Sometimes supported by 1 in the bass making V-I-V
  • Three is the most common
  • First typically falls on strong beat
  • Second/Third can sound an octave below the first
  • Koch refers to this as "Nachschlag"
  • Ascending octave leaps also possible

Reiterations of HC

Grand Pause

  • Initiates piano of S
  • Sometimes S starts on an upbeat which is during the GP
  • After HC has been played
  • goes through cadence several times
  • re-approaching
  • re-articulating

Medial Caesura

  • Not to be confused with Musical Caesura
  • Refers to any break in musical texture
  • "The brief rhetorically reinforced break or gap that divides the exposition into two parts, tonic and dominant"
  • Tonic and mediant in most minor key sonatas
  • Not all half cadences indicate MC - MC needs to be reinforced through a certain set of conditions

After MC Texture

Approached Through Chromatically

Altered Predominant Harmony

  • Sudden changes of texture usually occur after MC
  • Usually combined with drop in dynamics
  • Implies immediate emergence of S
  • Loud S is possible as reaction to TR

Conditions May Apply

  • #4
  • Applied Chord
  • V/V V7/V vii/V
  • Augmented 6 Chord
  • 4-#4-5 or 3-#4-5 in outer voices - Applied Chords
  • flat 6-5 in bass - augmented chord
  • Forte drive
  • More conditions involved the more decisive the MC
  • Not all these conditions are necessary to reinforce the MC
  • Allegro - the larger the scale of the exposition, the more conditions needed
  • Single condition HC caesura may sound strong in small scale exposition

Temporal (Proportional) Appropriateness

  • Precise placement of MC in exposition
  • Could occur between 15-70% of way through exposition
  • Second Level Default: I:HC 15-45%
  • First Level Default V:HC 25-50% (rarely 60%)
  • Third Level Default V:PAC 50-70%
  • Any caesura falling outside these boundaries are considered exceptional or not an MC
Learn more about creating dynamic, engaging presentations with Prezi