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What Kind of Instrument is the Piano: Percussion or Strings?
Is the Piano a Percussion or a Stringed Instrument? | Britannica
Types of Pianos | Music City Spokane
Piano and musical notes clipart. Free download transparent .PNG | Creazilla
Piano - New World Encyclopedia
Musical instruments explained: a beginner's guide - Classic FM
Bartolomeo Cristofori | Grand Piano | Italian (Florence) | The Metropolitan Museum of Art