For someone who wants to learn piano but does not have enough budget to pursue schooling for music, then it is best for you to download this application called Piano Solo HD. Piano Solo HD has awesome features like 81 keys, popular to classical music available, exclusive instruments, import your own sound, pitch levels, metronome, notes buttons, recording, and more. Moreover, you will surely enjoy using this aside from its remarkable features because it has awesome touch controls and realistic keys. Also, you don't have to worry about a thing because it is completely free and you can easily download it via Google Play on your preferred device.