Definition: 4 stringed guitar-like plucked instrument from China with a pear shaped body. In the literature as far back as 2000BC. The name refers to the forward and back picking technique. Read the full Other Fretted Instruments FAQ Page.
The soprano is the smallest uke and used to the be normal size, now there is much more choice! Soprano and concert ukes are tuned GCEA (C tuning), or ADF#B (D tuning).