squarish sans serif

Squared sans serif

This squared sans serif has me stumped!
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Its from the booklets packaged with Deutsche Grammophon's DVD presentation of Robert Lepage's Wagner Ring at the Metropolitan Opera in 2011-12.
Among the blind alleys I followed were: fonts with a sans+squarish tag at MyFonts, http://typophile.com/search/node/squared%20sans, and a fascinating discussion of The Mystery of Steile Futura http://typophile.com/node/18227.
So what am I missing?
Don