I've been enjoying this course so far. What I'd like to know is: Is it okay that my vocal range does not match with all the scales that is played in the audio workouts? Will it develop over time?
Also, I was reading the manual. It said about not tensing up the digastric muscle. But I've been keeping my mouth open as wide as possible while I practice the vowels, "AA", "AH", etc. Is my technique wrong?