I frequently use this app to notify parents of rehearsal or lesson changes/cancellations, remind parents of permission slip due dates, important performance information, and/or performance changes due to inclement weather.
I also encourage parents to use this app to reach out to me should any questions arise. This app has proven to be invaluable and I ask ALL parents sign-up. The Remind app also translates messages, which can be helpful if you are more comfortable communicating in a language other than English.