[itsme]

I created a song from a PDF. With "Edit Song" I opened the song editor, went to the "Files" tab. Clicking the folder icon opened the file system from where I added several more PDFs. Then I added a ChordPro file just the same way. Now, as soon as a ChordPro file is included into the song, when I click the folder icon again, adding more files is prevented with "You cannot mix text files with other file types".
With the up/down buttons I can move the ChordPro file from the last position to any place within the song.
At first glance it seems to work.
But you are right, there are some issues:
- when I change the font size of the ChordPro file, the display is not updated until I close and re-open the song
- when the number of pages of the ChordPro file should be changed because of changing the font size or because of turning the tablet from portrait to landscape, it keeps the original number of pages so that parts of the text are not displayed.

Combining ChordPro with PDFs in one song is not an essential feature at all, just the error message and behaviour are irritating and inconsitent.
If it's easy to allow the combination it might be useful in some cases. If it causes problems, just prevent it consistently.