Chapter 12 Flashcards
Thematic Development
the musical process by which melodic material is derived from a previously presented theme or melody, or to the process of musical growth by which themes or melodies generate extended sections
Repetition
implies restatement of a segment at exactly the same level
a basic means of formal growth by a motive or a phrase
Transposition
a repetition stated at a different tonal level than the original segment
Varied Repetition or Variation
the basic frame of the melody is preserved, original motive or phrase is now altered in some way
Tonal Sequence
the sequence goes down by steps following the diatonic scale, the exact relationships of steps and half steps between segments are not preserved
Real Sequence
the exact intervocalic relationships are preserved
Modified Sequence
a sequence that’s restatement of the segment isn’t literal, not because of the normal step and half-step diatonic relationships, but because some variation has been introduced.
Augmentation
intervals that are expanded
Diminuation
intervals that are contracted
Change of Mode
the key remains the same, but the changes from major to minor, or vice versa
Fragmentaton
Melodic development is often based on a fragment of the original theme rather than the complete unit
may be repeated, presented as a sequence, or subjected to any other kind of developmental transformation
Retrograde
to read a melody backwards
Inversions
reading a melody upside down
Retrograde (Crab) Canon
a “rule” by which a voice is derived from another voice
Round
a type of perpetual canon
several voices sing the same melody but each voice comes in when the previous voice reaches a certain point
Augmentation
the statement of a theme in proportionally longer rhythmic values, most often doubled, tripled, or quadrupled
Motive
a short, recurring musical figure, characteristic rhythmic/pitch pattern
Dimminuation
the statement of a theme in porportionaly shorter rhythmic values
Phrase Extension
a transformation that adds length to a phrase
Initial Extension
the beginning of a phrase
Internal Extension or Interpolation
within a phrase
Cadential Extension
the end of a phrase
Initial Extension
melodic unit may be lengthened by adding notes to its beginning
not always melodic
Cadential Extension
a fragment added at the end of a musical unit, usually after the cadence
Codetta
a slightly longer addition including some thematic material
Coda
an extended section, sometimes of substantial length, at the end of a movement
Interpolation
an internal addition to a phrase
when a phrase that has been previously stated is stated again, second statement includes material that has clearly been added to the original version
Inversion
a mirror image of a melody
the contour of the melody and the direction of intervals are reversed: ascending motion becomes descending and vice versa
