Ian, that, too, is one of my staple pieces. That was also a big hit by Rita Cooledge in the late 70's.
Heard Boz do it at a concert here in Lexington in 1977 and have been playing it several times a week every since.
On arranger, I use a stock style from an old Solton MS-60 called "New Age", but that wouldn't do you, or anyone but another "dinosaur" any good.
GREAT TUNE!
Russ