Just created (or rather edited the Template) a clock in AT, and put at the top of the hour a Link (after previously adding all Music carts as Songs, and most of the jingles as Links). When I scheduled this clock for every hour, every day, for the next month (just as a start), it reported that "Cart X is scheduled but is missing". However, it appears in Myriad's log correctly and plays OK. The carts in question (it's not always the same one) were included when added as Links.