Or, to put it slightly different way, there are much greater differences in sound between makers using the same woods than between different woods by the same maker. This difference, however, can only be perceived by playing identically made instruments by the same maker. Brazilian rosewood is less fibrous, and a somewhat harder, denser wood, and so tends to reflect sound more, and thus produces a bit brighter sound than does Indian. Tonally the woods have slightly different characteristics. Indian rosewood also has the advantage of being dimensionally more stable, and of being less affected by changes in humidity and temperature than Brazilian rosewood. Indian rosewood, on the other hand, grows on plantation, and so remains plentiful. In 1992 dalberia nigra was declared an endangered rain forest tree, and requires a CITES license, and so is no longer being exported period. In the mid-1960s the Brazilian government, with the aim of diverting more work to their sawmills, banned the export of logs. Brazilian rosewood has become increasingly expensive and rare. By contrast, Indian rosewood tends to be straighter-grained, and often contains purplish streaks. Brazilian has highly figured grain, and many consider it the more beautiful of the two, but it is more brittle and difficult to work than Indian rosewood. Both woods are dense, resinous, and very handsome. Two types of rosewood are commonly used in classical guitars and so-called flamenco negras: Brazilian rosewood (dalberia nigra) and Indian (dalbergia latifolia) rosewood. This unusual care in selection and preparation of wood is one of the reasons that Alvarez Yairi guitars are so outstanding in beauty and sound.
Then the tedious hand work begins-cutting, shaping and sanding for accurate joints and fits. Some parts are kiln dried for proper moisture content others are cured or aged further to insure stability. The planks are inspected again and rough cut to size and shape. Only after four years of curing will any wood be utilized for guitar consstruction. Yairi never has to use inferior materials in his guitars and his productin is never affected by shortages or shipping problems. The large inventory assres a plentiful supply of seasoned wood on hand for production so Mr. Buying in large quantities and processing on the premises saves tremendous cost in shipping and handling.
Yairi’s factory where they are cut into planks, graded and then stacked for seasoning. Mahogany from Honduras, Africa, New Guinea and the Phillipines is used for necks, backs, sides, blocks and kerfling jacaranda and rosewood for the backs, sides and bridges comes from India, Africa and South America and all of this wood must be of the finest quality. Resilient, sensitive spruce and cedar for tops and bracing are imported from Canada hard, smooth ebony and rosewood for fingerboards, and bridges from Africa.
As many as ten different species may be used in the construction of one guitar. Kazuo Yairi imports more than twenty different kinds of wood from all over the world.
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