Songbook desperately needs iTunes/Androïd import/export function.
If you want to save, upload or download your carefully choosen number of songs into your songbook in order to start using a new/other iPad/tablet, you can start all over again. Hence uploading or downloading a complete collection of songs via iTunes or Androïd should become available soon. It is a vital function to make this app ever to become useful as a decent music reader.
Comments
see https://musescore.com/groups/musescore-ios/discuss/1305016