(a) Except as otherwise provided in this subtitle, this title applies to a transaction or lien within its scope, even if the transaction or lien was entered into or created before this title takes effect.
(b) Except as otherwise provided in subsection (c) and §§ 9-703 through 9-709:
(1) Transactions and liens that were not governed by the original Code or the prior Code, were validly entered into or created before this title takes effect, and would be subject to this title if they had been entered into or created after this title takes effect, and the rights, duties, and interests flowing from those transactions and liens remain valid after this title takes effect; and
(2) The transactions and liens may be terminated, completed, consummated, and enforced as required or permitted by this title or by the law that otherwise would apply if this title had not taken effect.
(c) This title does not affect an action, case, or proceeding commenced before this title takes effect.