BTS Music Instrument Coloring Book is an online game that you can play for free. Splash out some colors over and around the instruments. Discover the magical happiness that colors could give to a single drawing. BTS, coloring book, music, instruments, kids, online game, free, coloring, preschool, school, art, creativity, musical instruments, drawing, color, kids puzzles, arcade, mobile game, entertainment, educational, fine motor skills