When a teacher, endeavoring to impress the importance of tone focus and head resonance on a student repeats the words "head tone" time and time again, some students feel that head torte is all that interests the teacher and often ask, "Can there be too much head tone in a voice?" Every tone must have its portion of head resonance, but tones that are all head tone—in other words, lacking in correct diaphragmatic breath support—become falsetto.

As a matter of fact, many extremely high notes sung by coloraturas are practically falsetto tones, but to make them correct singing tones, they must have breath and diaphragm support. Some tenors make all extremely high notes falsetto tones, since they lack voice and breath support, and these singers must change from this falsetto placement to another as they descend the scale. Such tones are not actually part of the voice or part of the singer’s range, but trick notes. Practically anyone can sing falsetto—if you call it singing—but the true high voice must have a body and depth that is never found in falsetto alone.