How shall we speak of this vocalist, or to whom shall we compare her? The power of language has been exhausted on inferior or commonplace artists. Excellent, beautiful, charming, delightful, and other like adjectives fail; and words cannot give an idea of Sontag, because by their common use they have lost their significance, and because it is really quite impossible for any one to imagine what her singing is who has not heard her, or some one of the very few real artists who take rank with her.