Since 1946 Prague Spring has been the main event of the classical season, and usually runs from the end of May to the start of June. Conductors such as Leonard Bernstein and Sir Charles Mackerras have been among the guests. Important anniversaries of major composers, especially Czech ones, are marked with special concerts. Orchestra concerts, operas, and church recitals make up the bulk of the schedule. The competition element gives attendees the opportunity to see the next big star. Typically around 60 concerts are spread over more than 10 venues during the nearly three-week run. Bedřich Smetana's Ma vlást (My Country) usually opens the festival. Major events can sell out months in advance; tickets usually go on sale mid-December. If you miss the big one, don't despair—the festival does have a younger brother taking place later in the year, the Prague Autumn.