Every violin student should practise on their own for at least two to four times a week for as long as needed to grasp fundamental concepts and complete any work assigned in class. The amount of time you should spend depends on the level of violin you are learning, from introductory violin to more complex violin concepts. A good start is studying violin for 15-20 minutes a day, or up to two hours if you are past high school. Learning time can also be further reduced with the help of a violin tutor.