Firstly, I just want to say that there are many, many reasons why Catholics don’t sing well, which have been expressed here already.
I also think one of the problems with a lot of the so-called “newer” hymns is that often times, each verse is different rhythmically, and is sometimes difficult for the average person to sing correctly. Also, the way the melody line is composed can determine the difficulty or ease of being able to sing the hymn, even if it is written within the vocal range of a typical untrained singer. When my husband first started composing songs, although the music sounded beautiful and was within the vocal range he was composing for, he didn’t take into account the way the voice worked. Some compositional approaches are easier than others vocally-speaking. If you are composing for untrained singers you don’t want to make it difficult for them.
Cat had a lot of valid points as well, especially in terms of people tend to not know how to sing anymore and just not being able to read music… so how can we expect them to be able to read hymns which constantly change with each verse?
I’ll take the more popular hymns often used at funerals I’ve cantored: “Be Not Afraid”, “On Eagle’s Wings”, “Here I Am, Lord”, “Amazing Grace” and “I Heard the Voice of Jesus”. I’ll try to explain as simply as I can. I will not discuss my tastes as to if I like the music or not. Because I’m a professional and hired to cantor, whether or not I like the piece it is my responsibility to give my best. I sing it as written and I focus on the text so that it is prayerful.
So first, “Be Not Afraid” - I have never heard any congregation sing this hymn as written. Most people don’t even understand what 16th notes mean or how to handle a double-dotted quarter note, which this piece has a lot of. First verse starts with two 16th notes on “You Shall”. It is often sung like two 8th notes, along with the 16th notes on “but you”. The rhythms in the second verse are also much different from the first.
Next, “On Eagle’s Wings” - Again, each verse is different rhythmically. The major problem I find with this hymn are the intervals for the untrained voice to sing. The vocal range is all over the place. So you start the voice off towards the upper range of a typical untrained voice for the first two measures of the first verse. Then on the last beat of the second measure it does an octave jump from D4 to D5. That isn’t easy to accomplish well with an untrained voice. For the female voice, the lower D sits more in their chest voice and the higher D sits more in their head voice. It’s easier to navigate the change from the chest to head voice when there is a gradual progression of notes in between, but to make the voice jump without having those transition notes can ask a lot for one who is untrained voice.
Then the refrain. Where the verse starts in the upper part of a typical person’s natural register, the refrain begins in the lower part of the register. I’ve found for a lot of people, although they “love” this hymn, they can’t sing this part or at least can’t sing it well. Although the interval isn’t as wide to sing, because “And he will” sits very low (at least for most female voices), to ask one’s voice to then jump to the E can make the voice sound a little shaky or make that “breaking” sound or yodel in the voice.
Third hymn - “Here I Am, Lord” - This is the easiest to sing rhythmically and range-wise out of the three “newer” hymns. The only confusing part to most congregants are measures 7 through 10 at “My hand will save”. “Save” is a whole note held for four beats, but then there is a whole measure of just the instrument playing, to which at this time, I often hear people start to come in or on measure 10 will come in a beat too early.
Fourth hymn - “Amazing Grace”. ** (Let’s not get into the appropriateness of the hymn text, please) **The music is very straight-forward and fairly simple to follow. Each verse is the same, musically. I don’t ever hear people having a problem with singing it, for the most part. The only point in the hymn for some people, might be the interval between the A and the D at “like me” in the first verse.
Fifth Hymn - “I Heard the Voice of Jesus” - It is not a “newer” hymn, and roughly within the same vocal range of “Amazing Grace”, “Here I Am, Lord” and “Be Not Afraid”. Along with “Amazing Grace”, it is usually not problematic to sing. Even the D on the word “came” isn’t difficult at “I came to Jesus…” because of how the B and C progresses to the D in the hymn. It helps the singer out, so-to-speak, and perhaps because it was originally “traditional” English folk melody, it is meant to be easily sung. Rhythmically, also pretty straight-forward. There are no surprises with each new verse.