Final answer:
The viola and cello play in parallel phrases called counterpoint in the second half of the Minuet (BA). Counterpoint is a technique where two or more melodic lines are played simultaneously.
Step-by-step explanation:
The viola and cello play in parallel phrases called counterpoint in the second half of the Minuet (BA).
Counterpoint is a technique where two or more melodic lines are played simultaneously, creating a harmonic and contrapuntal texture. In this case, the viola and cello play different but related melodic lines to enhance the musical composition.
For example, in the Minuet (BA), the viola and cello may play a call-and-response pattern, where one instrument plays a phrase and the other instrument responds with a similar or contrasting phrase.