Before moving on/back into the Epic set, I looked at recording dates vs release dates for the RCA albums. Tuns out that the last four were recorded in either 1959 or 1960, and not released until, respectively, 1962, 1963, 1964 (the last two.
Epic sessions began in May of 1962 and were released in a timely manner.
So....did RCA know they were losing the group and stockpiled a few sessions a la Bob Weinstein? Or was there some friction in the niceties of the RCA contract that had to be fulfilled before they could begin recording for Epic? Or just what, exactly?
The movement of the JSQ from Columbia to RCA and then back again to Epic/Columbia...is classical music subject to this kind of contract variances?