BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//gyrobase/iCalendar//NONSGML v1.0//EN
BEGIN:VEVENT
DTSTART:20120801
RRULE:FREQ=MONTHLY;INTERVAL=1;UNTIL=20140517;BYDAY=1WE
SUMMARY:Chamber Music
END:VEVENT
END:VCALENDAR