The Yamaha Chord Tracker app for iPhone/iPod touch/iPad helps you practice and perform songs by 　analyzing the audio songs stored in your iOS device and then displaying the chord symbols for you. ■Features Chord Tracker analyzes the audio songs stored in your iOS device's music library and then displays the song's chords on the screen, allowing you to play your favorite songs. And now, with both graphical piano keyboard and guitar tab display options, Chord Tracker is even more powerful. ■Note 1. The chords displayed by this application will match the mood of the original song very closely, but may not be an exact match for the original chords used. 2. Chord Tracker will not work for songs in iCloud or protected by DRM (Digital Rights Management). 3. Chord Tracker will not work with Music Streaming services such as Apple Music.