With this app, you can quickly take letter notes of music and later replay them. Interface is designed to allow its user to quickly & easily change Key, Transpose, increase/decrease Octaves. Data can be read/write in a form of .txt file, allowing transferring/sharing at ease. manual: https://p-library.com/a/melotex/ Edit Tab A-B: Musical notes as a letter Up and Down: to increase (/) and decrease (\) octave Blue Scroll: Change Key (also used to write letter Sharp (♯:#) with and Fl