Season announcements and subscription windows at the major orchestras, opera and ballet companies, single ticket on-sale dates, rush, student, under-40 and pay-what-you-can programs, Met Opera Live in HD and streaming schedules, Nutcracker and holiday on-sales, guest artist and conductor announcements, company labor disputes and cancellations, free outdoor concerts and open rehearsals and touring productions coming to the 30 largest metros, with the company or venue first and the on-sale date in the title.