As the accents were (and are) not shown on a Torah scroll, it was found necessary to have a person making hand signals to the reader to show the tune, as in the Byzantine system of neumes. This system of cheironomy survives in some communities to the present day, notably in Italy. It is speculated that both the shapes and the names of some of the accents (e.g. "tifcha", literally "hand-breadth") may refer to the hand signals rather than to the syntactical functions or melodies denoted by them. Today in most communities there is no system of hand signals and the reader learns the melody of each reading in advance.