The Eastman MDO305 Octave Mandolin is a well-crafted, great-sounding and affordable example of an instrument that is fast becoming a staple in a variety of musical styles including Celtic and Americana. The MDO305 has a carved spruce top, a carved maple back and it has a satin finish. It's tuned in fifths, the same intervals as a standard mandolin, only an octave down, which maintains the chime and natural chorusing effect of the mandolin’s double strings, but it brings the down into the vocal range for most singers. (Just check out the music of Sarah Jarosz to see how effective an octave mandolin can be with a singer.) Includes the original padded gig bag.