Dizzy Gillespie a.k.a. "Gabriel" (trumpet, vocals); Lucky Thompson (tenor sax, vocals); Milt Jackson (vibraharp, vocals); Al Haig (piano); Ray Brown (bass); Stan Levey (drums).
According to the Jazz Discography Project website, there were no less than six versions of Dial 1001 issued. (In fact, there may be seven or even more. The illustrated version is not among those described in the JDP, and I have a variant of it in my database that does not have the Dial mx number at the bottom of the label.) The JDP's base version, which I assume to be the original, features two different takes of Dizzy Gillespie (aka Gabriel)'s "Dynamo". The JDP refers to the takes as Dynamo A (labelled "Dynamo") and Dynamo B (labelled "Dynamo A"). The illustrated version also features two versions of "Dynamo", but they are labeled "Dynamo A" and "Dynamo B".
The remaining five JDP versions each feature one of the two "Dynamo" takes paired with one of two takes of "Round About Midnight." (Mathematically, there should be only four permutations. In point of fact, the JDP's alternate version 2 and alternate version 4 appear to be the same record with the same titles and takes of each. If there is an additional difference described, I didn't find it. Perhaps there are other differences yet to be documented. With Dial it is not only possible but probable.)
For those who want to identify which versions they have of each take, it is worth noting that the A take of Dynamo never appeared under any title but "Dynamo" when paired with "Round About Midnight" and that the B-take was invariably labelled "Dynamo A" when it was paired with "Round About Midnight", retaining its confusing labeling from the JDP's base version.
I can't offer any definitive help on identifying the take of "Round About Midnight". The take is shown at the bottom of the label on the illustrated version, but it may not be there on all versions. There is another mx-like number at the 9 o'clock position that is present on both the illustrated disc and its variant A side in my database. The last character may be the take number. At least on the illustrated disc they match the Take at the bottom. I don't have any of the "Round About Midnight" sides in my database.
78 RecordTempo Jazz Men - Dynamo A / 'Round About Midnight - Dial - USA - 1001 (1946)
78 RecordTempo Jazz Men - Confirmation / Diggin' For Diz - Blue Star - France - B.S. N° 60 (1946)
