mDecks Music includes music apps and books for beginners to advanced students, music teachers and musicians. Designed for musicians by musicians, using technology as an aid in music education. Current apps: Music Theory Puzzles, Tessitura Pro Scales and modes, Mapping Tonal Harmony Pro, 60 Top Hat Piano Grooves, Rhythmic Vocabulary Studies, Ear Training & Kids Ear Training. iPad, OSX, Win & Android