Today, at 83, she heads a political dynasty in which her daughter governs a province and her son is a national senator and strong contender in the next presidential elections. The great majority of the 900 civil and criminal cases against the Marcoses, filed in the Philippines and the United States, have been dismissed. “Here Lies Love,” based on a 2010 song collection that Mr. Byrne produced with the British musician Fatboy Slim, cheerily plays down the Marcoses’ corruption and cruelty.