Oper Graz has announced its 2018-19 season with a number of rarely-performed operas and musicals. It will also include a number of operatic warhorses. Here is a look. Productions  The double bill “Cavalleria Rusticana” and “Pagliacci” opens the season with a distinguished cast that includes Aldo di Toro singing both lead roles, while Audun Iversen and Yngve Soberg share the roles {…}