【實用音樂app】Scale Tracker|最夯免費app-綠色工廠好玩App

Keep track of the songs and keys that inspire you. When you need a melody for the next your next hit song, refer to your own database of references to pull from to get your creativity flowing, anytime, on the go.Use Scale Tracker's keyboard to help find the key of the currently playing song from your iTunes library and save for future reference.