General
- How to change the App language
- I have the full app on my iPhone and my iPad. I can't see the music tools on the iPad.
- How about Android version?
- What language does the app support?
- Can I play my MIDI file?
- What file type does the app support?
- What are iPhone / iPad supported and OS?
- Can I read manual about the app?
- How to combine some PDF files