All are invited to Klezmer and Knishes: A Purim Celebration With Pastries at 7 p.m. on Saturday, March 11, at the Unitarian Church of Marlborough and Hudson, located at 80 Main St. in Hudson. Tickets are $15 for the concert and $25 for the concert and the reception. If you would like to attend the reception, you must purchase your tickets by March 7. You can purchase concert tickets at the door, but not a spot at the reception. For more information, call 978-562-9180.