BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//gyrobase/iCalendar//NONSGML v1.0//EN
BEGIN:VEVENT
DTSTART:20111213
RRULE:FREQ=MONTHLY;INTERVAL=1;UNTIL=20140524;BYDAY=2TU
SUMMARY:open mic
END:VEVENT
END:VCALENDAR