CONTU

A high school band has purchased music with permission to perform. The music teacher has requested that the performance be shared on the school's website. From my understanding, the performance may be shared live / streamed (permission to broadcast) via the school's web page but may not be recorded and then posted to the website.

Your understanding is correct, but there are three additional details it is helpful to consider in this type of situation:

First, when a school confronts a concern like this, it should take a careful look at the license (the permission to use a copyright-protected composition) it purchased. 

Is it permissible to make digital copies of choral music that is legally owned by the institution to students in choral and instrumental ensembles? Some students may be studying remotely and mailing physical copies may result in lost or non-returned copies.

There are four ways it can be permissible:

We were discussing the Rule of 5 of copyright laws and wondered if it was limited by a single location or an institution. For example, if a public library has multiple branches can one branch request 5 articles from a single year from a journal and then another branch also requests articles from that same journal and year?

Libraryworld: a place where people gather to discuss information, and the best ways to share it with their community.  A place where people are just as likely to discuss the "Rule of Five" as the "Rule of Three."[1]  A place where routine conversation tackles everything from new database technology, to guidelines from the now-obscure "