Click "free sample" to read the whole book no need to purchase. In listening to a Patti, a Kubelik, a Paderewski, the reflective listener is struck by the absolute sureness with which such artists arouse certain sensations in their auditors. Moreover, subsequent hearings will reveal the fact that this sensation is aroused always in the same place, and in the same manner. The beauty of the voice may be temporarily affected in the case of a singer, or an instrument of less æsthetic tone-quality be used by the instrumentalist, but the result is always the same. What is the reason for this? Why do great artists always make the same effect and produce the same impression on their public? Unreflecting people may reply vaguely that it was because the artist "sang with expression." But what constitutes "expression" in singing?