A school with a dozen teachers and a few hundred students is not a calendar problem, it is a placement problem. Set the Tune places the whole roster at once and balances the load across your staff.
Set the Tune places each student with the right teacher for their instrument, then evens the weekly hours across teachers so one person is not buried while another sits light. It keeps siblings with the same teacher and on the same day when it can, so one family trip covers two lessons.
Import the roster you already have and Set the Tune places every student in one pass. The optimizer respects each family’s availability windows, matches students to the right teacher and instrument, never double-books, and keeps each teacher inside a real workday.
It is deterministic and free to run. Press the button again after a change and it converges, it does not reshuffle a schedule that is already good.
Every lesson is checked the moment it lands. Double-bookings, availability violations, teacher overload, and travel that is physically impossible all surface as flags you can see, not surprises a parent finds for you.
Each teacher gets a self-serve availability link and a calendar feed (ICS) that drops their lessons into whatever calendar they already use. Export a clean per-teacher or per-family schedule as PDF or CSV when the season is set.