The primary duties of the conductor are to unify performers, set the tempo, execute clear preparations and beats (meter), and to listen critically and shape the sound of the ensemble.Communication is ...The primary duties of the conductor are to unify performers, set the tempo, execute clear preparations and beats (meter), and to listen critically and shape the sound of the ensemble.Communication is non-verbal during a performance, however in rehearsal frequent interruptions allow the conductor to give verbal directions as to how the music should be played or sung.