Harmony & Counterpoint is a comprehensive music theory learning app designed to connect theoretical knowledge with practical musical writing. Study harmony, counterpoint, voice leading, solfège, ear training, instrumentation, orchestration, and jazz arranging through structured lessons and notation-based exercises. Rather than simply reading explanations, you can enter notes, solve musical problems, and receive immediate feedback. The Learning Guide and Note Input Guide help you understand how to progress through each subject and use the notation tools effectively. Whether you are studying composition, arranging, music theory, or preparing for formal music education, Harmony & Counterpoint provides a structured path from fundamental concepts to more advanced writing techniques. Main areas of study include: • Harmony and voice leading • Species counterpoint • Music theory and notation • Solfège and ear training • Instrumentation • Orchestration • Jazz harmony and arranging • Practical notation exercises • Immediate feedback and learning progress