I've been doing this long enough to have seen this before. Arts advocates get worried that music and art will get cut if they aren't treated as "real" subjects. And we've all bought into the notion that "real" subjects use standardized tests. Therefore...
There are about a billion ways to do high-quality assessments in the arts, starting with the fact that any art product is, in and of itself, an authentic assessment. I also think there is a place for festivals and judges, and that teachers of the arts and their supervisors should use results to evaluate their work as arts educators.
But bubble tests? Come on: aside from being terrible arts assessments, they are inevitably going to be poor-quality instruments that will vary from year to year. Arts standards in many states are already awful (New Jersey's are particularly bad). How can test designers correlate to standards that are unfocused and
Oh, and one other thing: I keep hearing we out of money. Are we going to pay for this? Every year?
Arts educators, arts advocates, and parents should resist this at every step.