9 Children's educational software; Downloadable mobile applications for learning and practicing music through math, namely, number and operations, geometry, measurement, algebra, and data and probability, and for learning and practicing math through music, namely, beat, rhythm, pitch, melody, harmony, timbre, form, tempo, and dynamics; Interactive multimedia [ computer program ] for learning and practicing music through math, namely, number and operations, geometry, measurement, algebra, and data and probability, and for learning and practicing math through music, namely, beat, rhythm, pitch, melody, harmony, timbre, form, tempo, and dynamics