CMEA Bay Section discusses some programs commonly used in music education. I haven't looked very deeply into this site, but there may be something of interest to those with the "right connections."

Note that some of these are popular with educators because of extremely deep discounts to "educators," and may be unaffordable for mere mortals. A few that I noted have seemed to be distributed only via "educational channels" and it sometimes may be difficult even to find sellers outside academia. Several "common" programs that are more-or-less affordable and easily obtainable are also listed.

John