A free program for Android, by Ra.
Compose sheet music - Notate is a music editor software for Android phones and tablets, developed to be the best music composition and musical score writing application on Google Play.
It is an easy-to-use music writing and score composition app that allows users to write, edit and play their own songs, playlists, and musical scores. With this application, users can compose music by typing notes, chords, or any other musical information, including lyrics and melodies, into the application's keyboard.
The application also has a comprehensive score and musical composition editing tool, so users can add, delete, or re-order notes, change the tempo or play speed, add a fade-out or a slide-in fade-out, change the instrument, add a mute, change the key, or add chords.
