Rachmaninoff Remember that mid 70's Pop hit?

Remember that mid 70’s Pop hit?

“All by Myself” by Eric Carmen. No wonder it was such a smash hit! Based on one of Rachmaninoff’s most rousing and gorgeous themes. (at the time Carmen thought the music was in the public domain … but it wasn’t! He had to come to an arrangement with the Rachmaninoff estate)

Rachmaninoff piano-concerto-no-2-in-c-minor-second movement