Piano MCQs App Download | Inventions MCQs e-Book PDF | 222
Inventions MCQs (Grade 8) From Textbook

Inventions MCQs – Certification Test 222

Piano MCQs (Question 222) – App & e-Book Download

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MCQ 222: 28 Keys piano is an invention of:

  1. Dr Dennis Colonello
  2. Sir Bartolomeo Cristofori
  3. Sir Otto Blathy
  4. Sir James Hillier

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