Requinto guitar

A requinto guitar is a smaller version of a classical guitar, with a scale length between 52-54cm. It is tuned a fourth higher than a standard classical guitar, to A2-D3-G3-C4-E4-A4. They often, but not always, have a cutout to reach the higher frets.

Someone playing a requinto guitar.
A classical guitar (left) and a requinto guitar (right)