My district only notifies by school. So, if my school has a positive test, an e-mail goes out only to my school... not the entire district. My school has had about 5 or 6 cases, and it's been understood that we are the strictest campus in the district when it comes to procedures, masks, etc...
I have no idea about the other schools. I haven't had any band kids test positive, but a handful have had to quarantine because of being around others' who have. The vibe is very secretive in my district - nobody wants to really give away what they are doing in their rooms. So if a lot of band kids at their schools have it, they're not telling us.
Based on what I'm hearing is going on in their band halls, it just seems like a matter of time before they have an outbreak. Again, I'm just shocked at the choices being made by other band directors in my district. I feel like the "uncool" kids taking it seriously while everyone else is playing it cool.