中級 ❤0 Post Share Johann Sebastian Bach ： Invention no.9 f-moll BWV 780 Type:Piece-collection Collection:Invention Key: f-moll Duration:1:30 ♡ Favorite 🎹 Played 📖 Practicing ⭐ Want to Play Post Share ☐ 🏆 Competition ☐ 🎼 Concert ☐ 📝 Exam Top Ratings Videos1 Practice Logs Performance Videos（1） J.S. Bach: Invention No. 9 in F Minor, BWV 780 rayray 29/06/2026 Like! 1
