Comment: This shows the culmination of study for this singer. He now has a singing voice where his tongue can move freely and the changing of vowels is easy.
Quote: Connection of the five basic vowel sounds, "ah," "ay," "ee," "oh," and "oo," on a single tone. The intent here should be to have each successive vowel flow logically out of the position formed by its predecessor while maintaining a solid underscoring of basic resonance. (The Free Voice)