There are a few ways that you can get your work into the Notion for iOS app.
1. You can email a file to yourself, tap the attachment in the email, and choose to open it in Notion for iOS on your mobile device.
2. You can install DropBox on your iPad as well as your desktop and use it to send files back and forth. There is an "Import" button on the Home screen of the app that will allow you to sync with DropBox. Once sync'd, the files that are viewed from the "Import" tab are the files that are in Applications>Notion Mobile inside of DropBox. You can also tap a score in DropBox and choose to open it in Notion.
3. You can sync your iPad up with a desktop computer via iTunes and manually drag the files back and forth. Here is an article from Apple that explains this process:
https://support.apple.com/en-us/HT201301
4. You can upload your scores to iCloud from your desktop computer and then sync your iPad up with iCloud. To sync to iCloud on the iPad, simply go into your device settings, scroll down until you see the Notion app, and then choose the option to enable iCloud support.
