Special meetings of the City Council may be called at any time by the Mayor. They may also be called by the Clerk on a petition signed by a majority of the City Council and filed with the Clerk. Notice of special meetings shall be served on the Mayor and councilors by the Clerk delivering to each member a copy of the call, or leaving it at the place of the member's residence. A majority of the City Council shall constitute a quorum for the transaction of business, but a smaller number may adjourn from time to time and may compel the attendance of absent members in such manner as may be prescribed by ordinance. (Amended 2013, No. M-5, § 2, eff. May 13, 2013.)