Children love following the adventures of dog and cat friends Bosco and Kitty, as they explore the notion that musical sounds can be either high or low, loud or soft, slow or fast, or combined in various ways. These musical concepts are introduced via the Twins and Triplets - groups of two and three black keys - to develop a tactile, aural, and visual awareness that is prerequisite to further music learning. Students learn to think in motion, be creative, and deal with several concepts simultaneously. Highly engaging full color illustrations.