Ultimate Tango School of Dance in Medford is offering a four-week Tango Mixology Course for advanced dancers on Sunday mornings from January 10 through 31. Presented via Zoom, the course is meant for non-beginners who already know the basic principles and structure of Argentine Tango. It challenges you to mix all available tango elements adding sacadas, boleos, ganchos, barridas, volcadas and colgadas into danceable combination. Cost is $120 for the course. Register through the Ultimate Tango website: https://courses.ultimatetango.com/pages/virtual-advanced-courses