[dalrmi]

I'm trying to have a good formatting but I can't do it, I've read the manual about this and I'm sure to make some syntax errors because I'm noto able to achieve my goal that is to avoid the - character if a field is empty and to have the words " NO %FIELD NAME%" in case of missing (I mean if I don't put the tonality of a song I'd like to have "NO TONALITY"). could I have an example from which I fan further improve my will ? Thank you very much. I attach my actual expression string.