TIL the New York Times does not have a rule in its style manual concerning capitalization of the titles of artistic works set in lower case by their creators.
It does call for following American capitalization rules for the titles of foreign-language works (“Così Fan Tutte,” not “Così fan tutte”); urges avoiding “fanciful” punctuation in company names (“Yahoo,” not “Yahoo!”); and calls for capitalizing only the first letter of acronyms that exceed four letters (“Unicef,” not “UNICEF”).