For singers: Learn vocal melodies note for note, transpose into any key that suits your own voice and easily play chord progressions to practice with.
For songwriters: Sketch chord progressions in any key, experiment with the major and minor scales to compose vocal melodies. Learn an easy way of notating your songs.
PLEASE NOTE: A few users have let me know that the app isn't displaying correctly on Huawei and Xiaomi devices. I'm trying to fix this issue and will hopefully have an update soon.