Intonatio is a mobile app designed to help you improve yourintonation. The app provides you with a series of exercises andgames in which concentration, hearing and memory are essential. Toimprove our sense of pitch, it is important for us to experienceand recall sensations, both while we’re playing and when we’relistening without playing. Intonatio has 3 main sections: lessons,games and audio. Lessons and Games: -In tune, sharp or flat.-Unison in tune. -In tune with the chord. In the “Audio” section,the musician can select the desired tuning (A-440, 442 or 445) andchoose between major or minor chords in various keys to practicetone and tuning exercises (sustained notes, arpeggios, intervals,etc.) accompanied by the audio clips. By hooking the mobile deviceup to a set of speakers, users can even practice playing as if tothe accompaniment of a piano.