Esther Laufer died at home on Highland Lane in East Hampton on Sunday at the age of 101. Mrs. Laufer had been a concert pianist and a piano teacher. “One of the highlights of her life was playing a Rachmaninoff piece during a piano lesson and later learning that Rachmaninoff himself had heard and admired her rendition,” her family said in an email. Her prized possession was a Hardman baby grand.