Shoulder rest

The shoulder rest is an accessory that can be found on violins and violas. It may be made of wood, aluminium, carbon fiber or plastic. Usually, the shoulder rest attaches to the edge of the back of the violin with "feet" padded with rubber tubing or made of soft plastic. The goal of a shoulder rest is to allow a more comfortable attitude while playing by adding height to the shoulder and preventing the instrument from slipping (Kreitman, p. 30). A shoulder rest generally follows the curve of the shoulder; some shoulder rests are bendable, others are made of sponge-like material, and a few have an extension that hooks further over the shoulder for stability. It is a relatively recent invention, and though it is quite commonly used among modern violinists and violists, it is not universally used. Depending on body type and style of clothes, some musicians need no more than a thin sponge, a cloth or sometimes nothing at all under the instrument.