A chin-rest for a violin, comprising: - a panel adapted to receive a chin of a violinist and including a bottom surface to be positioned above the top face of a resonating box of a violin; - an attachment part that extends perpendicular from said panel ; characterized in that: - the attachment part is designed to attach to the resonating box of a violin so that a portion of it is adapted to be attached to a protruding edge of the resonating box of the violin and to continue to said panel , said portion forms a channel from its interior side to face the protruding edge of the violin, the depth and shape of the channel being such that the protruding edge of the violin can be placed in it; - the bottom surface of said panel is situated at a specified distance, d (d), above the channel , such that, in use, said panel is spaced from the upper panel of the resonating box of the violin and is above it; - the attachment part has an opening of such shape and size that an elastic knot, which forms the elastic string stretcher of the violin, can be drawn through it for stretching the strings of the violin; - the attachment part is further so configured that, in a state where an elastic knot is attached at a single place to a string holder of the violin and is drawn in a stretched state through said opening and is attached to a fixed end pin of the violin, the elastic knot passes over said portion that forms a channel and presses a portion of the attachment part toward the side walls of the violin. - a panel adapted to receive a chin of a violinist and including a bottom surface to be positioned above the top face of a resonating box of a violin; - an attachment part that extends perpendicular from said panel ; characterized in that: - the attachment part is designed to attach to the resonating box of a violin so that a portion of it is adapted to be attached to a protruding edge of the resonating box of the violin and to continue to said panel , said portion forms a channel from its interior side to face the protruding edge of the violin, the depth and shape of the channel being such that the protruding edge of the violin can be placed in it; - the bottom surface of said panel is situated at a specified distance, d (d), above the channel , such that, in use, said panel is spaced from the upper panel of the resonating box of the violin and is above it; - the attachment part is designed to attach to the resonating box of a violin so that a portion of it is adapted to be attached to a protruding edge of the resonating box of the violin and to continue to said panel , said portion forms a channel from its interior side to face the protruding edge of the violin, the depth and shape of the channel being such that the protruding edge of the violin can be placed in it; - the bottom surface of said panel is situated at a specified distance, d (d), above the channel , such that, in use, said panel is spaced from the upper panel of the resonating box of the violin and is above it; - the attachment part has an opening of such shape and size that an elastic knot, which forms the elastic string stretcher of the violin, can be drawn through it for stretching the strings of the violin; - the attachment part is further so configured that, in a state where an elastic knot is attached at a single place to a string holder of the violin and is drawn in a stretched state through said opening and is attached to a fixed end pin of the violin, the elastic knot passes over said portion that forms a channel and presses a portion of the attachment part toward the side walls of the violin. <EOS>