How to Sustain Your Voice
A lot of the beauty and singing comes in the sustains that we hold in our songs, and the ability to hold a steady even sustain is essential to a fluid sounding performance. Work with Scale 26 to practice smooth, even sustains, and see if you can find an even vibrato. Then begin to work on having smooth even starts and stops to your songs in order to minimize strain and create elegant lines.
Use Scale 11 or 30. Sing "No No" and "Wee Wee"
Practice singing all the vowels: Ah, Eh, Ee, Oh, Oo using Scale 26