When people go for an audition they will normally have to prepare something to perform.
An actor many have to be prepared to say a monologue (a speech from a play). If he (or she) is auditioning for a particular play then he will take a scene from that play, e.g. if the play is Hamlet a male actor who would like the part of Hamlet might have prepared the famous "To be or not to be...." monologue. The director of the play will then be able to decide whether he is good enough, or whether he might be better in another role. They may give the person who is auditioning some other tests, e.g. improvisation or acting with other people.
When a musician auditions for a job in an orchestra they will have to prepare a piece of music they know well. They may also be expected to have prepared difficult passages from well-known musical works, e.g. someone auditioning for tuned percussion might be asked to play the xylophone introduction to Summer Time from Porgy and Bess, one of the hardest solos for xylophone. They will also be given some sightreading.
In some cases people who pass an audition are still not automatically a member of a group until they have performed with the group for a trial period.
- Three senior members of the orchestra auditioned a young musician for a place in the orchestra. (They tested him.)
- The young musician auditioned for a job in the orchestra. (He was being tested.)