"Piano Relative Pitch Trainer" is a professional ear training tool designed for every musician who wants to sharpen their hearing. Do you want to transcribe songs faster? Do you want to sing with perfect pitch? Do you want to understand music theory more intuitively? The first step to achieving these goals is mastering "Relative Pitch"—the ability to identify intervals between notes correctly. This app is a powerful yet simple tool to elevate your musical sensibility. Main Features: 1. Multi-Level Training Easy (1 Note): Foundational practice identifying one note relative to the root. Easy (2 Notes): Consecutive ear training identifying two notes in sequence. Normal: Advanced mode with fewer hints for practical skill-building. From beginners to advanced players, you can step up at your own pace. 2. Flexible Notation & Multi-Language Support Switch between CDE notation (C, D, E...) and Do-Re-Mi notation (Do, Re, Mi...) anytime. Supports English, Japanese, and Vietnamese. Note names are optimized for each language setting. 3. High-Quality Piano Samples We use real piano samples, not synthetic tones. Practicing with authentic sounds helps develop a natural "musician's ear." 4. Progress Tracking Training results are automatically recorded in an integrated calendar. Visualizing your progress and accuracy keeps you motivated for daily practice. 5. Modern & Intuitive Design Answer intuitively using a piano keyboard interface. Features a sleek, distraction-free dark mode design. Who is it for? Musicians who want to transcribe music faster and more accurately. Vocalists aiming for better pitch control. Composers and arrangers looking to deepen their understanding of intervals. Anyone wanting to build a solid musical foundation in their spare time. Relative pitch is a skill that lasts a lifetime. Start expanding your musical world today with "Piano Relative Pitch Trainer."