| http://www.w3.org/ns/prov#value | - This Treatise is expressly calculated to teach the Art of Singing and consists of establishing proper rules, (the result of fifty years experience) accommodated to the capacity of every student whether amateur or professor, theatrical or choral, also to assist those who sing by ear only, and so arranged as to enable the pupil to improve by the exercise of these rules, in the absence of a master. .
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