On 9/2/2014 19:33, Tom Fine wrote:
> Here is a lossy version of one of the Ellington recordings:
> Why does the phase seem to waver? Is it timing errors between the disk
There were subtle differences in the speed of the turntables. Seth
Winner mentioned (in a 78-L posting many years ago) that when he
transferred these for the "Complete RCA Victor Recordings" box, he
played both "channel" discs at once on two turntables, and manually
fine-tuned the pitch of one as they played, to maintain sync.