K-ON! 2nd season

K-ON! 2nd season started. As the previous one, Kyoto Animation poured enormous resources to this 2nd season opening. The 3-D synthetic animation shows incredible 2-D character's motion we've never seen. Details of music instruments are well described again. As our consequence, emitting loud acoustic sounds is still popular and let everybody enjoy. On the other hand, making and emitting radio frequency is less popular.