Piano Chord Training

From “knowing” chords to being able to “play” them at a glance. Chord Trainer is a hands-on training app that helps you derive diatonic triads from a key and scale degree—and master them through actual performance. 【Key Features】 Choose Your Practice Mode: In addition to the standard 10-question mode, Chord Trainer offers sequential and random practice modes. In practice and random modes, keyboard hints guide you to the next note. Visualize Your Weaknesses with Heatmaps: After each session, the app records your first-try accuracy and time to correct answer. Heatmaps by chord and key let you instantly identify your strengths and areas for improvement. MIDI Input Support: Play using either on-screen taps or an external MIDI keyboard. Track and review your results separately for each input method. 【Make Practice Personal—and Fun】 Use coins earned through practice sessions to unlock a variety of characters (HEROes). Take on challenges together and stay motivated every day. Start with free exercises. If you’d like to go deeper, unlock additional exercises with a straightforward one-time purchase.