Why is it easier to sing higher than lower?
Our vocal cords are fleshy flaps made out of air and muscle which undulate as we sing. As a singer we want to filter the air evenly from low notes to high notes. The faster the vocal folds undulate, the higher the note. ... As notes get higher, the cords start to unzip and you need less air but more support.
Why is singing high difficult?
A strong high note needs the CT muscles to stretch and thin the cords to get to pitch. ... Although singing in falsetto the singer may be reaching the actual note, it can give a weak voice interpretation and the voice can be at risk of voice waivers in longer notes.