This all-in-one bookmark can fit neatly into a child's stocking and includes a metronome, A440 tuner and practice timer. The metronome allows one to guide a music student with the countdown timer, setting it for 15, 20, 30 minutes or more with the touch of a button. When the practice session is over, an alarm will sound. The cumulative timer can be used to accumulate total practice time over multiple practice sessions. All of these features can be used simultaneously. This product has received awards from the National Association of Music Merchants, iParenting and Children’s Technology Review.