Originally Posted by Cerio
The XML won't include notes nor lyrics, just chords, parts, key and tempo, which is exactly what I expect to import in musescore. As far as I know Reaper or any other DAW won't import that XML, simply because most DAWS are not designed to work with that info.

Importing the XML into musescore has worked flawlessly for me (and I've been using SMP a lot during these last months), so I suspect there's something you're not doing correctly. Would you mind to share your project here?
XML should handle all the notes, lyrics, key, tempo and notational stuff like crescendos and trills.
Should != does frown

Jazz relative beginner, starting at a much older age than was helpful.
Kawai MP6, Korg M50, Ui24R, Saffire Pro 40.
AVL:MXE Linux; Windows 11; Win8.1: Scarletts
BIAB2022 UltraPAK, Reaper, a bunch of stuff.