Ontario’s finest annual stage events open in earnest this month with previews for a number of anticipated plays. At the renowned Stratford Shakespeare Festival, audiences can start humming on April 10 as Kiss Me, Kate offers a musical interpretation of the Bard’s The Taming of the Shrew, while Peter Pan begins his magical flight on April 16. A short trip from Toronto, the Shaw Festival in quaint Niagara-on-the-Lake offers previews starting April 9 of Oscar Wilde’s An Ideal Husband, in which a government minister must choose between a public scandal and shaming his wife. Also on the fest’s spring schedule are Mary Chase’s Harvey, as of April 1, and Chekov’s The Cherry Orchard, on April 20. An early-bird bonus: tickets to preview performances often come at a discounted price.