Use this video for each of the Catona exercises.
The exercises are actually a 1-5-1 slur for upper male voice. In the video, I play all of the notes in between the 5th to guide you. Simply replay the video for each vowel.
Remember, how you pronounce the vowels:
AH – as in father
EE – as in seat
EH – as in said
OH – as in ought
UU – as in boot