My dd7 started violin at 4 and around 6 she really lost her enthusiasm. She's always loved music, but it isn't something that comes easily to her as so having to practice to see progress has been really good for her. When she lost interest I came up with a token system to bribe her. She earned a token for each practice session (usually about 15-20 min) and the tokens could be turned in for a half-hour of screen time. She really didn't like having to practice but wanted to play Webkinz or watch tv enough that it kept her doing it. Fast forward 9 months and she's loving it again and she actually asks to practice.
