Which term describes a composition for one or more principal instruments, with orchestral accompaniment?

• A. Chromatic
• B. Con
• C. A composition for one or more principal instruments, with orchestral accompaniment
• D. Con brio

Answer: (B)

This item tests naming the musical form that highlights a solo instrument or group with orchestral accompaniment. The correct term for that form is concerto. A concerto centers a principal instrument (or group) in dialogue with the orchestra, often arranged in three movements with a characteristic fast–slow–fast pattern and opportunities for the soloist to show virtuosity in cadenzas. It’s distinct from directions like con brio (with vigor) or from terms like chromatic (describing pitch movement) or con (the preposition meaning “with”). The description that literally matches this concept points to the form by name, which in standard terminology is concerto (and a related, but separate, form is the concerto grosso, where a small group contrasts with the full orchestra).