I selected the AFAT Ps 4:9 and in the right click menu selected "Psalm according to ...." label. I then initiated the Search all resources. This is the Search argument that was built:
{Label Psalm WHERE According to ~ "The Nehiloth (The Flutes)" AND Attribution ~ "David" AND Genre ~ "Lament" AND Structure ~ "Chiasm" AND Tag ~ "Neginah (with strings)" AND Tag ~ "Selah" AND Tag ~ "Superscription"}
I've not seen the term "Tag" before. Any documentation on what I've run into and if the 3 tags have more specific names?