Challenge on the "welcome song"

So I did get caught up in a challenge, I looked at the PLO's that were met by the welcome song. The song can meet PLO's for Drama in the exploration and imagination and drama skills themes for grades K to 5. It can also meet PLO's for Music in the structure theme, mostly grades k to 3 but can fit the PLO of "use singing skills to reproduce melodies" that goes to grade 5. For Dance the motions can meet PLO's in Elements of Movement and Presentation and Performance themes for grades K to 3. For kinders the song can meet language arts PLO's for oral language A11 and A12 which are speaking clearly enough to be understood by peers and adults; and demonstrate auditory discrimination. Of course as we are learning in assessment it can only meet those PLO's if we assess for them.