Allow the child to choose the lighting he or she prefers. The decision could be accommodated simply by placing the music stand and chair used for practice near windows or, conversely, on the side of a room away from the windows. Remember, the lighting preference should be that of the music student, not the parent. Don't be concerned about the student having enough light to read by. Persons who prefer to learn in dim light actually perform better with less light.
Bright light causes many children to become hyperactive.
The music student should choose a regularly scheduled time to practice, whenever possible, during his or her preferred time of day. Research has revealed that gifted musicians actually have three peak times during the day, unlike most individuals who have only one. Other students prefer to take breaks. Either way is acceptable, as long as the task is completed. Certain individuals prefer to eat while learning.