Full-time professional orchestras work with several conductors through the course of a regular season. Accordingly, while the conductor may change week to week or month to month, the concertmaster lends a sense of stable and constant leadership day to day. While the impetus for the orchestra to play is given by the conductor's gestures, oftentimes for reasons of precision, the orchestra will actually follow the bow of the concertmaster as their cue to play. This is because the conductor's gestures exist in the abstract whereas the concertmaster produces sound along with their fellow musicians. Further, the idiosyncratic technique of some conductors can make it difficult for the orchestra to enter together. Yet another duty of the concertmaster is to maintain a sense of decorum during rehearsals by setting a personal example and by monitoring the room to ensure all members of the orchestra are being cooperative. It is more appropriate for the concertmaster to ask for quiet if there is a bit of chatter than it is for a guest conductor unfamiliar with the orchestra.