(a) A "course of performance" is a sequence of conduct between the parties to a particular transaction that exists if:
(1) The agreement of the parties with respect to the transaction involves repeated occasions for performance by a party; and
(a) A "course of performance" is a sequence of conduct between the parties to a particular transaction that exists if:
(1) The agreement of the parties with respect to the transaction involves repeated occasions for performance by a party; and