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2. Pitch addition (Pv2). Addition of pitches, usually non-skeletal, to the original unit-pattern without changing the general characteristics of the original version. Two consequences are evident: the first being elaboration of the original unit-pattern without changing its duration (i.e., ♫ from the original J SA T }; and the second, elaboration resulting in extension (i.e., MA (AT)♫ from the original ♫ ).
3. Pitch reduction (Pv3). Reduction of pitches, usually non-skeletal, to the original unit-pattern without changing the general characteristics of the original version. Pitch reduction results in the reduction of the original version without changing its length (i.e., from the original STA)) or with the shortening of the original version (i.e., ♫ from the original ♬ JEJ ).°
Rhythm-variant.
1. Rhythmic alteration (Rv1). Alteration of rhythmic details of the original unit-pattern without changing the pitch and order of pitches, nor the general characteristics of the original version (i.e., ♫ ♫ from the original A)).
2. Rhythmic augmentation (Rv2). Augmentation of the time-value of certain pitch(es) in the original version without the addition or reduction of pitches (e.g., ).