It's great to have the full score preserved, but the pacing is tepid, Frederica Von Stade's diction is odd (for years I thought she was German based on her line readings) and her performance reminds me of Pauline Kael's quip that Cyd Charisse speaks her lines as if she'd learned them phonetically,
Here is a long and informative review and discussion of this set by Stephen Holden.
Yet the making of the record has reawakened racial tensions and raised questions about the impact of musicology on a form - the Broadway show - that has only recently become subject to intensive scholarly investigation. Magnificently recorded and sung, the album features Frederica von Stade as Magnolia Hawkes, the naive and romantic daughter of a riverboat captain; Jerry Hadley as Gaylord Ravenal, her feckless gambler-husband; Teresa Stratas as Julie LaVerne, Magnolia's mulatto friend; and Bruce Hubbard as Joe, the black stevedore who sings ''Ol' Man River.''
Unquestionably the most important fragment to be reinstated is the blues chorale, ''Mis'ry's Comin' Aroun,' '' whose full statement in the new recording deepens and darkens the mood of the show, and which Mr. McGlinn believes is essential to any future production.
William Hammerstein, who controls the Hammerstein interests in ''Show Boat,'' disagrees. ''It's a wonderful, moving piece of music, but it was cut for a reason,'' he argued last week. ''When experienced, knowledgeable people cut material from a show, it's because it's not working, and they're usually right.
If the ultimate impact of this recording on future productions and recordings of ''Show Boat'' won't be known for many years, the album is certainly a landmark. Its vital, intense performances, especially Miss Stratas's Julie, along with the inclusion of all the dialogue for which Kern composed underscoring, much of it stirringly emotional, make this recording the fullest accounting of ''Show Boat'' we are likely to see any time soon.
And Mr. McGlinn's fluid pacing and his balancing of music and drama and are exemplary.
Harold Prince went for McGlinn's choice. I wonder what the final judgment of the Hammerstein son was.
https://www.nytimes.com/1988/09/25/theater/show-boat-makes-new-waves.html
I'm amused you thought you could school me in MGM history, though.
Every effort has been made to avoid any opinion that might conflict with your justifiably widespread reputation as one of the world's foremost MGM film authorities.