An instrument holder having a body with a vertical opening formed through the body for receiving and securing an end pin. The body is attached to the rear portion of a brace or platform, and the instrument rests on the brace and against the body. A support mechanism is attached to the body and includes a curved portion for engaging with the leg of the player of the instrument. An adjustment mechanism is provided for adjusting the height of the end pin and securing the end pin to the body.