An improved support for stringed musical instruments of the violin family, allowing the musician to play the instrument in a wide range of stable and adjustable playing positions without using pressure from the chin, jaw, neck, left hand, or shoulder resulting in comfortable playing positions and a relaxed body posture, the support sling consisting of one or more narrow lengths of flexible material slipped under the tailpiece of the instrument, over the adjacent shoulder of the musician, down diagonally across the musician's back, under the opposite underarm, and upwardly across the musician's chest until the opposite ends of the sling are adjacent to each other, whereby they may be connected to each other to form a continuous loop that extends around the body of the musician making a close and secure fit.