MusicPad is an educational program designed to develop a musical hearing. Manipulating the mouse or another manipulator you represent a melody. As a whole MusicPad is an electronic analogue of a human throat, and it turns out that movement of the manipulator upwards strains vocal chords, and that movement of the manipulator downwards weakens them. Except for that MusicPad gives an opportunity for the "singer" to change a sound of the voice. MusicPad could be useful if you hesitate to sing or if you have no appropriate voice. For orientation of the user in musical set the spectrum is stipulated. The spectrum is submitted by discrete color areas each of which has binding to the note certain heights. Display of height of the also possible to see on vizualization submitted at the left.