Tiny handcrafted miniature classical acoustic tenor guitar w/case. Dimensions: 2 1/2" H. Decorative (does not play). A tenor guitar is a fretted four stringed instrument, most commonly shaped like a classical guitar, sometimes smaller than a normal guitar, which usually has a scale length of 23 inches and which is tuned in "fifths" to CGDA. It has been around for 100 years or more, built by some of the most famous companies and played by several well-known musicians in a wide variety of musical styles.