Master Keys is an assistive product designed for the blind and visually impaired, but can be used by everyone, who wish to learn how to play the piano in the comfort of their own home. Tactile and audio feedback, using vibration motors and speakers, allow an alternative to leaning how to read sheet music. This device is designed to be used alongside a real piano. Users have the opportunity to play whatever songs they wish by downloading them to the device and also setting the level between beginner and intermediate. The aim of this product is to encourage those with sight loss to take part in recreational activities which they may have thought were impossible before.