Section 9--327. Priority of Security Interests in Deposit Account.
    The   following  rules  govern  priority  among  conflicting  security
  interests in the same deposit account:
    (a) A security interest held by a secured party having control of  the
  deposit  account  under  Section  9--104 has priority over a conflicting
  security interest held by a secured party that does not have control.
    (b) Except as otherwise provided in subsections (c) and (d),  security
  interests  perfected  by  control under Section 9--314 rank according to
  priority in time of obtaining control.
    (c) Except  as  otherwise  provided  in  subsection  (d),  a  security
  interest  held  by the bank with which the deposit account is maintained
  has priority over  a  conflicting  security  interest  held  by  another
  secured party.
    (d) A   security   interest   perfected   by   control  under  Section
  9--104(a)(3) has priority over a security interest held by the bank with
  which the deposit account is maintained.