You're invited to a free Argentine tango class from 8:00 to 9:00 pm, followed by the Helena tango community's monthly "milonga," or social dance, from 9:00 pm to midnight. The cover charge for the dance is $9 ($5 for students). It's fine to come to the class and/or to the dance with or without a partner. Ongoing classes are also available for both beginning and intermediate dancers. For more information, see www.tangohelena.com, find us on facebook, or call 406-449-5541.