Fisrt, thank you for your great work !! i discovered Volumio few days ago and it is great !!!
i see that the songs’s titles displayed in the Playlist are the filenames. I presume it should be the songs titles tag present in the files.
Song file : 01 Twice_As_Hard.flac
Title tag : Twice As Hard
The title displayed is the playlist is “01 Twice_As_Hard” instead of “Twice As Hard”
More surprising :
Song file : 07-billy_idol-hole_in_the_wall.flac
Title tag : Hole In The Wall
The title displayed is the playlist is “hole_in_the_wall”
So it is not a single rule for extract name files.