【實用音樂app】BooBop|最夯免費app-綠色工廠好玩App

BooBop! A fun musical interface.Tap a square with two fingers to record a sound.Tap with one finger to playback the sound from the beginning.Swipe to the left to play from one second in.Swipe upwards to play from two seconds in.Swipe to the right to play from three seconds in.Swipe downwards to play from four seconds in.