Updating for CC 2021 - preserving customized songs

Hi, I’ve just upgraded to the 2021 pack and now need to upgrade it. I know I can do this by just loading it into BBM and then syncing my SD card but I have a lot of playlists and songs that I’ve created myself in there.

Do I need to back up all those songs and then reload them after I’ve installed the update or is there a way to do it whilst preserving those songs and playlists?