High Quality Content by WIKIPEDIA articles! A rehearsal is a preparatory event in music and theatre that is performed before the official public performance, as a form of practice, and to ensure that all details of the performance are adequately prepared and coordinated for professional presentation. In theatre, a performing arts ensemble rehearses a work in preparation for performance before an audience. Rehearsals that occur early in the production process are sometimes referred to as run-throughs. Typically a run-through does not contain many of the technical aspects of a performance, and is primarily used to assist performers in learning dialogue and to solidify aspects of blocking and stage movement.