DoReMi Music Lesson
utechipo
Halbestunde: 學習鋼琴
Halbestunde
Music notes training for piano
KI's Application
flowkey - 由你喜愛的鋼琴音樂自學鋼琴
flowkey
MuseScore: sheet music
Musescore Limited
Complete Music Reading Trainer
Binary Guilt Software
FUYOMIN - Music Reading Game -
fuyomin.com
Tomplay - 自带伴奏的乐谱
Tombooks SA
樂譜識別儀 - Sheet Music Scanner
David Zemsky
PlayScore2 needs hi-end camera
Organum