Which voice classification has a first passagio of Eb4-F#4?

The classification that features a first passaggio occurring between Eb4 and F#4 is typically associated with the soprano voice. In vocal pedagogy, the passaggio refers to a transitional area in a singer's range where they need to adjust their technique and vocal production to navigate from one register to another, such as from chest voice to head voice.

For sopranos, the first passaggio generally falls within the range specified, allowing them to bridge the transition between the lower and upper parts of their vocal register effectively. This range corresponds with the natural tessitura of a soprano where they feel most comfortable singing and can transition smoothly.

While other voice classifications, such as mezzo-soprano, tenor, and baritone, have their distinctive passaggi, they occur in different pitch ranges that align with the unique characteristics and vocal behaviors of those voice types. Thus, identifying the first passaggio helps to accurately classify voice types based on their physiological vocal changes.