A long, accompanied song for a single voice, typically in an opera or oratorio.
Here's why this is the best definition:
* Long: Arias are typically longer than other musical forms within an opera, like recitatives.
* Accompanied: Arias are always sung with instrumental accompaniment, usually an orchestra.
* Single voice: Arias are intended for a single singer, showcasing their vocal abilities.
* Opera or oratorio: Arias are most commonly found in operas and oratorios, though they can occasionally appear in other musical genres.
Key points to note:
* Emotional expression: Arias often serve to express strong emotions, thoughts, and motivations of the character singing them.
* Structure: Arias often follow a specific structure, typically with sections like a recitative, a strophic verse, and a more elaborate, virtuosic section (often referred to as a "cabaletta").
* Formal singing: Arias require a high degree of vocal technique and artistry.
While other definitions may focus on specific elements of an aria, this definition encompasses the key features and provides a comprehensive understanding of what an aria is.