Final answer:
The term 'Trill' describes the rapid alternation between two adjacent pitches in music compositions.
Explanation:
Trill is the term for the rapid alternation between two adjacent pitches in a musical composition. It involves oscillating quickly between the two keys to create a distinctive musical effect.
For example, in a piece of music, a flutist might perform a trill by rapidly alternating between two close notes, adding ornamentation and excitement to the melody.
Trills are commonly used in various musical genres to embellish and enhance the melodic lines.
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