With many thanks to Ulrich Roddewig, who pointed me towards the series of albums published in the 1960s by the German magazine Twen. The covers were designed by renowned designers like Karl Gerstner, Heinz Edelmann, Max Bill and others; art direction was by Willy Fleckhaus.
Here’s the book about the records, published by Lars Müller:
The A5 series is intended as a growing archive on graphic design. Each volume introduces outstanding personalities and important themes from the history of international graphic design, with numerous illustrations, essays and interviews. A5 is a cooperation between the labor visuell in the desgin department at the Fachhochschule Düsseldorf and Lars Müller Publishers. Between 1961 and 1968, the magazine Twen produced a series of LP recordings in collaboration with the Philips record label. During this period, all editions of Twen were accompanied by LPs drawn from the realms of jazz, classical music, radio plays, world music, or pop. For the designs of his record covers, art director Willy Fleckhaus used Concrete Art by Karl Gerstner, Max Bill, and other dedicated graphic designers such as Heinz Edelmann and Günther Kieser. This now forgotten series, comprising around 70 disks, is a masterful instance of the conjunction of music and graphic design. In collaboration with music archives and private collections, this rare series is reunited in its entirety and documented in this publication.
And here is a gallery over at the Jazzrealities blog.
And another list at rate your music. Fabulous.