Only Organization Administrators have access to Accounts.
From the Apps tab, select Subscribe on the Music Stand line.
Once you're subscribed, your balance will change, and people can log in to Music Stand or access Web Music Stand from any plan.
Follow these articles to learn how to use Music Stand!
Disable Music Stand
If you'd like to disable Music Stand, go back to the Apps Page and click Unsubscribe.
Your balance will change, and people will no longer be able to access to Music Stand.