【實用音樂app】Verti-Chord Keyboard|最夯免費app-綠色工廠好玩App

With its now patented, VERTICAL piano keyboard, the Verti-Chord Keyboard app provides a 3-octavespan of full-sized piano keys on-screen at any given time, thus making it the ONLY piano keyboard appsuitable for real-time playing.This app is NOT a 'Lite' version. NO features have been disabled, and NO advertisements have beeninserted. You're welcome!