Fig. 20. Vox Humana with Vowel Cavity Attached. Fig. 21. Orchestral Oboe with Vowel Cavity Attached Fig. 22. Kinura with Vowel Cavity Attached
Builders who have not mastered the art of so curving their reed tongues that buzz and rattle are impossible have endeavored to obtain smoothness of tone by leathering the face of the eschallot. This pernicious practice has unfortunately obtained much headway in the United States and in Germany. It cannot be too strongly condemned, for its introduction robs the reeds of their characteristic virility of tone. Reeds that are leathered cannot be depended upon; atmospheric changes affect them and put them out of tune.
The French school of reed voicing, led by Cavaillé-Coll, has produced several varieties that have become celebrated. Many French Orchestral reeds are refined and beautiful in quality and the larger Trumpets and Tubas, though assertive and blatant, are not unmusical. The French school, however, does not appear to be destined to exercise any great influence upon the art in this country. (For further information regarding reeds see chapter on tuning.)