实用且易于查阅的乐理知识库
如题，知识结构易于上手，适合想系统性学习乐理知识的人。 本app唯一美中不足的是缺少深色模式。
en: [PR] dark mode needed.
en: [PR] dark mode needed.
Needs lessons on sus chords.
I love the app and I find it very useful, but it lacks any information regarding suspended chords.
Très bien
Très intéressant et instructif. Un petit point à améliorer : ajouter un marque page.
No sound
It looks like an interesting app, however it has no sound and the forward and bacheards arrows don‘t work as well.
~ 9 years later
I have to say. I appreciate apps like this that stand the time with needing much updating. This app has been instrumental in learning music theory and what’s great is you can use it as a reference as well as a walkthrough. Love this app. Thanks to the developers
