What 7 deck item developed by Brian Eno and Peter Schmidt was used to help create the album Taking Tiger Mountain?
Taking Tiger Mountain (By Strategy):  To help guide the production of the album, Eno and Peter Schmidt developed instruction cards called Oblique Strategies to use through the creative process of the album. Oblique Strategies:  Each card offers a challenging constraint intended to help artists (particularly musicians) break creative blocks by encouraging lateral thinking.
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