I think this one was recorded in '79...It was released late that year and peaked (at least in the US) in 1980.
Strikes a perfect balance between simplicity (Forbert's a singer-songwriter type) and complexity (there are several sections mixed and matched). Probably my favorite of the 1980s.
You've likely heard this song if you were listening to Pop music in 1980; it also received Adult Contemporary and Rock airplay. It has a beautify piano introduction which is repeated throughout. The intro piano gives way to a piaon-acoustic guitar-bass-drumkit backing to Forbert's vocals; later embellishments include backing singers, organ, and electric guitar.