The $25 tickets are available to purchase at the Detroit Opera House box office weekdays from 10 a.m.-5 p.m. or on the day of the show beginning at 5:30 p.m. The tickets must be purchased by ...

Audiences at the Detroit Opera House expecting their performance of "Cosi fan tutte" to begin with the overture may be surprised to hear instead a product launch from a tech company CEO.

DETROIT — Audiences at the Detroit Opera House expecting their performance of “Cosi fan tutte" to begin with the overture may be surprised to hear instead a product launch from a tech company CEO.