 There was to be no talking, or disturbances of any kind, during the singing, and anyone who came in late had to wait until the end of a piece to be seated – rather like modern concert-hall etiquette.Musicians were to rehearse every day, and no music was to be copied or taken away from the area of performance.The music was so closely guarded, at least during the early years of the "Académie", that no music of the originating composer – Courville – is known to have survived.