Various
"Stereo a la carte 3" (Vinyl)

Phase 4 Stereo was a concoction brewed up by the London record label as a series of "gimmick" records to promote the new-fangled "stereo" hi-fi's that were beginning to gain popularity in homes.

This particular record is a collection of groovy swingin' arrangements of popular tunes ranging from "La Bamba" to "Lady be Good."

London (and Decca) recorded these on state-of-the-art 10-track consoles and meticulously mixed to highlight the stereo effect.

As an advertisement goes, it's pretty radical.  This particular album was released in German.  There's hardly a word on the front or back I can make sense of.