In what context is a concerto typically performed?

A concerto is typically performed in a context that features a solo instrument accompanied by an orchestra. This format showcases the soloist's virtuosic abilities and highlights the interaction between the solo instrument and the orchestral ensemble. The orchestral accompaniment provides both harmonic support and contrasts with the solo performance, creating a dynamic dialogue that is characteristic of the concerto form.

In contrast, performing a concerto with just a small ensemble or as a solo performance without orchestral support deviates from the traditional structure of concertos. Additionally, the inclusion of a choir suggests choral music or vocal compositions, which are distinct from the instrumental focus of a concerto. Thus, the unique orchestral setting combined with a soloist is what defines the concerto's context.