They are rare but not extinct.

My point is that if you say “organ music at Mass” you will conjure a certain kind of music based on Catholics’ experience. If you say “guitar music at Mass” you will not likely conjure an association with classical guitar.
Dear Corki,
Cordial greetings and a very good day.
This is so very true and guitars and/or drums also evoke a disorderly scene which is both unseemly and improper at the Holy Sacrifice of the Mass. Does not St. Paul enunciate an axiom which should be ever present in the conduct of divine worship - a precept which plainly forbids all slovenliness and, by reasonable extension, any music that is not conducive to a spirit of reverence and a sense of the numinous: “Let all things be done decently and in order” (I Cor. 14: 40). Divine worship at Holy Mass, dear friend, should not be the sort of thing that one associates with folk clubs, bars, rock concerts or youth conventions. After all the faithful do not attend Mass to be entertained but to worship God and to receive the Blessed Sacrament. Therefore it is right and proper that divine worship should be conducted in a grave, rational, composed and very orderly manner. We worship a Holy God and He is not to be dishonoured, nor His worship disgraced, by our unbecoming and disorderly performance of it.
Thus whilst guitars are licit for use at Holy Mass, dear friend, many men are of the opinion that such musical instruments simply cannot be incorporated in a solemn, dignified and reverent manner that is consistent with the traditional beauty and solemnity of the Mass. Moreover, your modern ‘worship songs’, which are invariably accompanied by guitars and drums, have a tendency to be too noisy, self-centred and indulgent, rendering them highly unsuitable for
communal public worship. These simple noisy ditties largely appeal to the parish youth and thus exclude the more conservative or elderly church people from any participation whatsoever. Is that really fair or right in public worship, just so that the youth are kept happy and can attend their ‘cool’ worship services? In any case there is a mistaken assumption that *all *youth are desirous for this sort of informal ‘happy-clappy’ type of worship and that solemn dignified services do not ‘connect’ with them and are thus a hindrance to youth mission. However, the fact is that an increasing number of young people are attracted to the Traditional Latin Mass because they see the beauty of it and are aware of the sense of the numinous with which it inspires. Therefore, it is simply wrong to suppose that the majority of our Catholic youth want this informal Pentecostal style worship with guitars and drums, many do for sure, but not all. The young folk who tend to like this sort of thing usually come from a Protestant ecclesial background such as Evangelicalism, where ‘happy-clappy’ worship styles are immensely popular. This is certainly the case with Anglican Evangelicalism (church of England).
It is surely important in this discussion, dear friend, that we all reflect upon the very nature and character of the Holy Sacrifice of the Mass. At Holy Mass Heaven and earth intersect as it were and we have a direct encounter with the sovereign majesty of God. This is clearly something sublime, majestic and solemn and therefore it is jolly hard to see how in such a context guitars and drum kits have a place in such an encounter. We are to worship the Lord in the beauty of holiness and if this is to be done in a dignified manner then we must reverence His sanctuary and ensure that all things are done “decently and in order” within its sacred walls. Authentic worship will always powerfully lift up men’s minds to God and higher things, making the things of this world grow strangely dim.
God bless.
Warmest good wishes,
Portrait
Pax