The Missa Bossa Nova was written for the vernacular Tridentine Mass of the 1965 missal by Father Peter Sholtes. If you forget the tempo and instruments and focus on the English words, you will find that the first translation of the Latin Mass into English was very faithful to the Latin whereas what we got in 1973 was anything but faithful. Listen closely, the translation is very similar with only minor differences with the revised translation that we've had for the past glorious year.
I think the single worst thing that happened to the Catholic Mass was not its vernacularization, although the second revised English translation was an absolute disaster, now corrected thanks be to God and not to liturgists.
The single worst thing that happened to the Catholic Mass was the total abandonment of Gregorian Chant, or polyphony or other chants based upon these. But worse yet was the abandonment of no instrumentation when singing and the organ for instruments that are best left to the secular venue, such as those used in the Missa Bossa Nova. Even its name tells you that Catholic spirituality and chant are seriously compromised by the melody, beat and instrumentation used.
Keep in mind it was my generation, the baby-boomers, onto whom this was first foisted and in the Tridentine Mass, not the reformed Mass, as the wave of the future and that to hate this or want what we had in pre-Vatican II times was so out of date, so pre-Vatican II and so not with it! You would be marginalized for finding this distasteful and not in keeping with our Catholic heritage! It is this type of tripe, not the words, but the melody, instrumentation and beat that compromised our Catholic identity as it regards our Catholic liturgical heritage, spirituality and connectedness with our past. It seriously compromised our Catholic culture (i.e. cult, worship). We have yet to recover from this and in fact are now foisting it upon a new generation with contemporary beats, melodies and instruments, praise and worship music primary amongst this deconstruction of Catholic identity when it comes to chant and instrumentation.
But when you listen to this below, and keep in mind, written and performed for the Extraordinary Form of the Mass, I wonder if it would have been okay without the folk instruments and 1960's bee bop sound. Without instrumentation, the melody might work very well or accompanied only by organ. What do you think? But let's thank God, that in His mercy, the Missa Bossa Nova was not set to the Credo!
THE COMPLETE SUNG TRIDENTINE MASS SUNG AS A FOLK MASS:
The nine-fold Kyrie
The Pater Noster
The Angus Dei