Here is how "Improvisation" in Piano Grade is conducted.
The objective of this subject is to evaluate the candidate’s abilities to (1) provide an accompaniment that suits the melody and (2) make variations as an entire piece. The "Accompaniment" of Grades 10-8 is connected to this "Improvisation" subject.
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For Yamaha Grade Examination details, visit our website.
https://www.yamaha.com/2/grade/