Martin J-40 Standard Series Acoustic Guitar, Sitka Spruce/East Indian Rosewood w/CaseMartin's Standard Series presents an excellent selection of guitars that are authentically Martin visually and tonally. This entry to the series, the J 40, delivers on classic Martin style and sounds. The J 40's rare tight waisted, jumbo body profile is constructed of East Indian rosewood and Sitka spruce. This classic combination of woods delivers rich and resonant tones, matching the guitar's arm filling form. The J 40's natural Sitka spruce top