Too many of the technicians of the present day no longer sing. Their difficulties—they surmount them more or less happily; but the effect is too apparent, and though, at times, the listener may be astonished, he can never be charmed. Agile fingers, sure of themselves, and a perfect bow stroke are essentials; and they must be supremely able to carry along the rhythm and poetic action the artist desires. Mechanism becomes, if anything, more accessible in proportion as its domain is enriched by new formulas.