(a) Except as otherwise provided in the instrument , two or more persons who have the same liability on an instrument as makers , drawers , acceptors , indorsers who indorse as joint payees, or anomalous indorsers are jointly and severally liable in the capacity in which they sign.
(b) Except as provided in Section 3-419(e) or by agreement of the affected parties, a party having joint and several liability who pays the instrument is entitled to receive from any party having the same joint and several liability contribution in accordance with applicable law.