EtudiX Piano Tutor is a program to help you visually learn to play the piano or keyboard without learning to read music scores in a traditional way. EtudiX is meant for people who have a good musical ear but who find it difficult to learn the classical music theory of notes, bars, and measures. The first prerequisite for learning to play a piece using EtudiX, is that you can sing along with the tempo and the main melody of the piece. EtudiX does not show the tempo or accents of a piece, it only shows you visually where to put your fingers on the keyboard. The second prerequisite is that you have a decent midi file of the piece you want to learn. Millions of midi files can be found on the Internet. Note however that you will have more satisfactory results with EtudiX, if the midi file was not recorded from a live keyboard player, but created by inputting the exact notes from the original score.