Kodaira AST-38 Artist Series Classical Guitar (1984) Very RareThe Kodaira AST 38 is very rare. It is virtually the same as the AST 50 except it has unique dark wood grain patterns on the top. The darker the wood the more dense and hard (stiff) the wood is, This gives the AST 38 a warmer tone. The AST 38, AST40 and AST 50 all have solid cedar top which will give you a warm and radiating tome, while the AST 60 has a spruce top which produces a brighter and louder sound. Which is better? It's just a matter of