Editors' pick

Signature Theatre Open House

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Editorial Review

The musical theater's 20th season opens Saturday with a day of free performances, classes, demonstrations and exhibits. The family event also includes a moon bounce and mask- and puppet-making for Signature's littlest fans. Activities are from noon to 9 p.m., with new events starting every 15 minutes. Signature's first show of the season, "Dirty Blonde," a comedic examination of fame through the antics of Mae West, begins Tuesday.