Prolonged or organ tones are not possible on the pianoforte. From the moment the hammer strikes the string the tone begins to diminish in volume and soon fades away. One of the chief arts of the pianist is to sustain a tone throughout the full value of the note which represents it, and this is accomplished either by steady pressure on the key or by the use of the open pedal, frequently misnamed the loud pedal. The use of the word "loud" in this connection is illogical and misleading. The word "open" is much better, because this pedal, when pressed, causes the dampers to be raised from the strings, thus leaving them open, and so prolonging the tones. Furthermore, the open pedal is constantly used in the softest and most delicate passages. Its mission is simply to prolong the tones, whether loud or soft. In either case the tone dies rapidly away, and the pianist, sensitively aware of this, and feeling the necessity of keeping up the volume of sound, is led unconsciously to anticipate or take the next tone a little before its due time. The effect of this process in continuation is to produce a feeling of unrest on the part of the hearer, and is fatal to repose. On this account Thalberg earnestly recommends to piano-students that "the tones invariably be held throughout their absolute or exact value" (see "L'Art du Chant"). Tones can be sustained, so far as this is possible on the pianoforte, in two ways, namely, by means of the open pedal or by holding down the keys firmly during the exact value represented by the notes. How can this value be determined? Solely through the medium of the ear. "The proof of the pudding is in the eating." The proof of musical sounds, as to quality and duration, is in the listening. This being granted, it seems to follow that all signs, such as "Ped.," *, or [** two check marks], etc., should be discarded as being even worse than useless, for when pupils pay careful attention to them they are apt to be guided solely by the eye. They press down the pedal at the sign "Ped.," and release it at the following asterisk (*), doing this in a merely perfunctory way, and hence they either fail to produce a true legato effect or err in the opposite direction of an over-legato, which results in a confusion of sounds. This may be best avoided by practising on an instrument of fine musical quality and beautiful singing tone, which promotes the habit of listening attentively, and thus contributes in the highest degree to the development and training of the ear.