After searching through previous forum posts, it appears that PDF and text files cannot be utilized within the same song. So even if I loop with a click over the solo, I can't then switch to using text for lyrics and chords. Is that right?
If so, the only way I can think to manage this is to have two versions of the song in the playlist. The first one with the pdf lead sheet, which would be opened and played through, then I would click on the next song (version 2) to load the text and chords.