During set-up of your site, it is often beneficial to suppress all notifications and invitations that will be sent from the site as music learning and attendance tracking is enabled for different types of content.
Enable/Disable Advisor Notifications
Go to: Settings and admin > site settings > Advisor / Notifications
At the top of the page is a checkbox to enable or disable the notifications. Be sure to save your changes.
This will not affect mailing list emails, nor login invitations.