Unlike all other piano apps, you are not forced to follow the fixed instructions (animated dropping bar). Piano + HD is specially designed to enable you to play in any speed, effortlessly. You can play your song slow or fast, all depend on you and your mood and your style. With 25 million downloads on Google Play, this app is one of the best effortless instrument apps and games for your Android tablet and mobile phone! Please try it and play your favorite songs without any practice.