I'm with Vlad here ... Do you feel there is a place in the Mass for the music of Cole Porter and Bobby Darin? I recall several years ago, the pastor at my former parish invited a pianist to play 'accompaniment' to the Consecration. The music was not liturgical but something I would label 'mood music'. It was totally unrelated to the sacred actions taking place before us and was more of a distraction than a method for lifting our hearts heavenward.
Most of the Eastern Catholic liturgies are chanted with musical instrument accompaniment - EXCEPT - the words of Institution which are chanted by the priest and no instruments. It is his voice, good or bad, that chants the words of Consecration to a prayerful congregation. Mass is not entertainment; it is a time for deep reflection, prayer and worship due God.
No. However, I do not accept the corollary that "Morning Has Broken" is "the music of Cat Stevens." It's the lyrics of Eleanor Farjeon and the melody of traditional song from the British Isles. Anyone can record a piece of music, without prejudice (imo) to other users, past or future.
That said, I don't like the song all that much, and we're certainly not going to do the Spanish version at our service!