“The trouble with ‘My Way,’ ” said Mr. Gregorio, “is that everyone knows it and everyone has an opinion.”

Others, noting that other equally popular tunes have not provoked killings, point to the song itself. The lyrics, written by Paul Anka for Mr. Sinatra as an unapologetic summing up of his career, are about a tough guy who “when there was doubt,” simply “ate it up and spit it out.” Butch Albarracin, the owner of Center for Pop, a Manila-based singing school that has propelled the careers of many famous singers, was partial to what he called the “existential explanation.”

Image A karaoke machine outside a house in Pasig city, east of the capital, Manila. Credit... Jes Aznar for The New York Times

“ ‘I did it my way’  it’s so arrogant,” Mr. Albarracin said. “The lyrics evoke feelings of pride and arrogance in the singer, as if you’re somebody when you’re really nobody. It covers up your failures. That’s why it leads to fights.”

Defenders of “My Way” say it is a victim of its own popularity. Because it is sung more often than most songs, the thinking goes, karaoke-related violence is more likely to occur while people are singing it. The real reasons behind the violence are breaches of karaoke etiquette, like hogging the microphone, laughing at someone’s singing or choosing a song that has already been sung.

“The Philippines is a very violent society, so karaoke only triggers what already exists here when certain social rules are broken,” said Roland B. Tolentino, a pop culture expert at the University of the Philippines. But even he hedged, noting that the song’s “triumphalist” nature might contribute to the violence.

Some karaoke lovers are not taking chances, not even at family gatherings.

In Manila, Alisa Escanlar, 33, and her relatives invariably gather before a karaoke machine, but they banned “My Way” after an uncle, listening to a friend sing the song at a bar, became enraged at the laughter coming from the next table. The uncle, who was a police officer, pulled out his revolver, after which the customers at the next table quietly paid their bill and left.