I'd just like to reiterate what I was trying to say in my original post, and perhaps express myself more clearly:

I was pleasantly surprised to learn ~ at my own mother's memorial Mass ~ that a highly appropriate, undeniably religious, and linguistically graceful set of lyrics is available to be sung to the familiar melody of "Danny Boy" (aka "The Londonderry Air"). I wish I had been given advance notice, and had been better prepared to participate in the singing; as it happened, I didn't realize until the third or fourth line that the words being sung were in fact printed in the program.

I would respectfully suggest that, in those jurisdictions where the secular "Danny Boy" lyrics are forbidden, that parishioners be made aware of this option and be encouraged to consider singing the "In Paradisum" translation, using the popular and familiar melody that they love.

An aside, on the subject of "folk mass" liturgical music:

Back in the early days of post-Vatican-II liturgical reform, a very popular new hymn (and a personal favorite of mine) was "They Will Know We Are Christians By Our Love." Anyone remember that old guitar-mass favorite? After just a few short years, it suddenly seemed to fall into disfavor, and was pretty much never heard again. It seemed to me that the lyric's very explicit embrace of ecumenicism, its expression of solidarity with all Christians (including, heaven forbid, non-Catholics), were deemed offensive by the reactionary forces who took over the Church after the death of Pope John XXIII and attempted to roll back as many of his reforms as possible. That era, incidentally, marked the beginning of the end of my personal involvement with institutional Catholicism...