vibrato

Vibrato is a technical musical term used to describe a controlled, rhythmic oscillation of pitch. It is distinct from tremolo, which involves a rapid variation in volume or amplitude rather than pitch. In professional music circles, a natural vibrato is often seen as a sign of vocal or instrumental maturity, whereas an excessive or forced vibrato can be perceived as unstable or overly dramatic.

As a specialized musical term, it is typically treated as an uncountable noun when referring to the technique itself. While one might discuss different types of vibrato, it is rarely pluralized in standard musical analysis unless referring to specific, distinct styles of oscillation across different performers.