拓展页
The law of high and low- Lawyer Senior 3
- Same 8 and 12 degrees
- General technician
- Hang and pluck
- Senior technician
- Interval check
- A preliminary outline of tone
- Tie The strings
- The octave expansion test
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- Intermediate Outline of tone
- Resonant sound plate
- Concert pitch
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- Advanced Syllabus for tone
- Rosewood coconut
- Piano string
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