Did David Baker tour Europe in March 1961 with Quincy Jones' big band?
The recent "Live in Ludwigshafen 1961" disc on SWR/Jazzhaus gives no personnel listing but has Q introduce the band, and where Melba Liston would be expected, he mentiones David Baker. That and Sixten Erikssen (instead of Rolf Ericsson) are the two differences from the line-up given for the EmArcy Zurich recording, just a few days prior. Did they really change musicians mid tour? Changing swedish trumpet players, maybe, but american 'bonists?
Here's the cover of the disc I'm talking about: