Personally, I’m happy that singing the rosary, as opposed to chanting it perhaps, has never been a widespread practice.
I’d also be interested to learn how it came about that the Chaplet of Divine Mercy has become almost exclusively a sung devotion when it is presented on radio or television. For me, I recite the Chaplet in as quiet an atmosphere as possible. I literally cannot abide it as it is presented with a musical background, whether or not it itself is sung. Do the producers of these radio and TV versions believe that the Chaplet can only be presented with music sounding? Do they think that people want to hear it sung always? How did they come to those conclusions?
Most generally, the Rosary is simply recited. Occasionally you will hear a musical interlude between the mysteries, but thankfully a full music background has never become standard in the media. In my humble opinion, that is how the Chaplet of Divine Mercy should be presented. Enough with the ferverino music! Perhaps I’m the only Catholic it repels, but I wonder.