Answer :

Answer:

True!

Explanation:
This excerpt explains why it is true quite well:

"Up to the end of the 18th century, the standard range, or compass, of the piano keyboard was five octaves (61 keys). However, in the years after 1800, the compass gradually extended. And, in the age of Chopin (1810-1849) and Liszt (1811-1886), it had grown to 82 keys."