Cries of ‘Mabuhay Dante!’ would most likely be referring to Kumander Dante who became the first commander of the New People’s Army (NPA) upon its establishment in March 29, 1969. They were to be the Communist Party of the Philippines’ military arm.
Here is the Communist anthem, The Internationale, as translated into Tagalog.
Forty years ago, the mere playing or possession of a recording of this song or its English equivalent would land you in prison. Worse, you could disappear forever. Now, it is posted on the official Tumblr account of a Philippine government office.
I hope though that other government agencies, particular those in law enforcement and national security, have also gotten over their Cold War biases like the ones in Malacanang. Otherwise, things haven’t really changed at all.