Glottal tones come from the throat, yeah,
Extended syllable emote.

Many notes; syllable, one.
It's syllabic extension
Makes a mellifluous run
That's sweet melisma.

In "Angels We Have Heard on High," refrain,
In which is mentioned the Lord's name:

Whether you sing low or high,
Just before you get to "r-i"
In "Gloria"--serial orgasmic sighs,
That's suite melisma, o-o-o-o-o.

As soon as that part comes,
Time to make glottal runs,
Unleash punctuated air
Like a tire punctured (where's the spare?).
Let 16 "O"s, stepwise notes, roll out, roll out.

Glottis, with "O"s, has to heave-ho, roar, roar,
Before you reach the "Deo."
But sing sweetly and do not bay. . .
Might drive the audience away.

Sing syllables, don't just say. . .effete melisma.
When your lyrics skills decay, can't beat melisma

A pop song of yesterday, has got melisma.
It's used on the word say-ay-ay-ay in "Sweet Melissa."