Question

why more than one piano is writtern pianos

Answer 1

Piano is singular i.e. 1.

But Pianos means many pianos i.e. plural..

Hope this helped

Answer 2

Answer:Well here is the answer below:

Explanation:

The piano is an acoustic, stringed musical instrument invented in Italy by Bartolomeo Cristofori around the year 1700 (the exact year is uncertain), in which the strings are struck by hammers. It is played using a keyboard,[1] which is a row of keys (small levers) that the performer presses down or strikes with the fingers and thumbs of both hands to cause the hammers to strike the strings.