Apps Features:
1.You can play the music score you have written in real time.
2.Keyboard is customized for ABC Notations.
3.Tap the notes you can edit the staff line.
4.The staff could be exported as PDF or Midi file.
No matter you are a professional or an amateur on music score creating, you could try this staff editor, it is based on ABC Notations which is a very ancient method to note music score.
The app is deeply customized for ABC notations, if you are familiar with ABC Notations, you could use this staff editor to create a wonderful melody quickly.