What Is Falsetto, Really? And Is It Really That Easy?

Using the early laryngoscope (which García invented in 1854), he observed that falsetto involves edge vibration of the vocal folds, with less muscular engagement and minimal contact area, leading to a breathier sound. He viewed falsetto as a light, flute-like register, useful for some effects but needing careful management to avoid weakness or a noticeable break. His observations still inform modern pedagogy, though terms have shifted since the 19th century.

• García pointed out that what many teachers called “head voice” in women was often actually falsetto, a light, flute-like vibration, with reduced power and fewer harmonics.

• He noted that women could often sing quite high in this register, but without the richness of a fully adducted upper mechanism

In The Structure of Singing (1986), Richard Miller largely frames falsetto in the context of men’s voices, where it is a light, “breathy” mechanism, “lacking firm closure at lower pitches”.

In general, Miller’s definitions and systematics still serve as a standard reference in classical vocal pedagogy, even though they have been supplemented by insights from modern vocology and voice research.

In The Science of the Singing Voice (1989), Johan Sundberg also presents data for female voices. They can also use falsetto, but their vocal fold physiology and register transitions differ.

• Female falsetto tends to be less breathy than male falsetto. The vocal folds in women can achieve more complete closure even in the high, “light” register.
• Sundberg treats female head voice and falsetto as overlapping but distinct. Because women’s vocal folds close more efficiently than men’s, falsetto can function almost like head voice in practice.
• In men, the difference between head voice and falsetto is usually more pronounced. In women, they often overlap, so the distinction is subtler.

In other words, describing falsetto as breathy and incompletely closing at lower pitches is male-centered. Female singers’ falsetto often has better closure, less breathiness, and can extend lower in pitch relative to male falsetto.

In 2009, Christian T Herbst, Sten Ternström, and Jan G Švec distinguished 2 types of falsettos in a classically trained baritone:

• Naïve Falsetto is a breathy tone with minimal vocal fold contact
• Countertenor Falsetto uses more complete vocal fold closure compared to naïve falsetto, which allows for a clearer and more resonant sound.

Scroll down to the resources for all the links to the research!