Play is to actor as concert is to ____.

Given data

• An actor performs in a play.
• A concert is a musical performance.

Concept/Approach

Keep the performer–event relation consistent.

Step-by-step reasoning
Play → performed by an actorConcert → performed by ?Performer in a concert = musician

Verification/Alternative

Conductor is specific but not universal to all concerts; musician covers singers and instrumentalists. Audience and stage are not performers.

Common pitfalls

Picking venue or attendees instead of the performer.

Final Answer
musician