...In my experience there is no "inherent" beautiful or ugly voice. The instrument itself produces a limitless number of overtones that produce our vocal color. The specific vocal colors we bring out depend on our personal selection of what overtones get suppressed and what others get reinforced.
The specific arrangement of overtones from one note to the next create consonance or dissonance in the musical environment. The beauty of the voice depends first and foremost on musical sensitivity, what Kagen in his book calls "having a good ear". How we arrange our voices around the music reflects a sensitivity to beauty or not.
The beauty of the voice is in our inner selves (call it the spirit, the soul, whatever). We produce what we imagine. The instrument itself has the capability of nearly endless colors.
TS
Be not the slave of your own past. Plunge into the sublime seas, dive deep and swim far, so you shall come back with self-respect, with new power, with an advanced experience that shall explain and overlook the old.
Ralph Waldo Emerson
TS's Blog:
http://tsvocaltech.blogspot.com