ScheduleSlot
One stretch of the station's day: from this time, on these days, the station plays this
ScheduleSlotList
Attributes (1)
ScheduleTimetableQuery
A window of the station's day to draw
ScheduleTimetable
The station's day as blocks, ready to draw
ScheduleOccurrence
One block: this slot, on this day, between these two times
ScheduleNow
Which slot the clock says should be on right now, and what follows it