Music Scheduler

Music 1 Version 7
Professional

Scheduling in Automatic Mode
When you do it this way, M1 schedules the entire day without stopping.  When it encounters slots where all its choices at that moment would violate one of your formatting rules, it selects the least-objectionable one, drops it in and "flags" it with red font.  After the day is fully scheduled, you can click through the hours, find the problem slots and make changes as you want.