A: Nat "King" Cole And His Trio with The Les Baxter Chorus.
B: Nat "King" Cole with Orchestra Conducted by Les Baxter. From the Paramount Picture "Capt. Carey U.S.A.".
A mx: 5665, take 4.
B mx: 5664, take 2.
Recorded at the Capitol Recording Studios in Hollywood, CA, March 11, 1950.
Gus Levene, Nelson Riddle and Les Baxter were listed as arrangers for the session, but there is some confusion as to who arranged what. Possibly produced by Lou Busch.
Added commercial record label scans that (almost) match the promo scans -- one small difference is that the "B" Track ("Mona Lisa") went from a "Vocal Group" to "Vocal" I wonder if "Mona.." was already getting more recognition?
And of course "Mona Lisa" became one of Nat "King" Cole's signature hits . . . whereas only die-hard Cole fans seem to wax nostalgic over "The Greatest Inventor (Of Them All)."
It's interesting to know that Capitol Records designated their A-sides "Y" and their B-sides "Z" in these years (mid-1947 to Oct 1951), so "Mona Lisa" (with the Orchestra) actually was the B-side whereas "The Greatest Inventor" (with the familiar Trio) was the A-side. This one was also reviewed in the first place in the Billboard review of May 20, 1950 ("Mona Lisa" got slightly better ratings though: 87 of 100, compared to 86 of 100 for the A-side).