The most ever recordings would be very difficult to measure.  Is a one sided, 78 recording equivalent to an opera, i. e, are they both considered to be one recording?
By the way, another artist who spanned acoustical to digital was the pianist Shura Cherkassky.
Jon Samuels

--- On Wed, 11/28/12, Gray, Mike <[log in to unmask]> wrote:

From: Gray, Mike <[log in to unmask]>
Subject: Re: [ARSCLIST] truth or myth -- RCA claims about first digital recording
To: [log in to unmask]
Date: Wednesday, November 28, 2012, 4:59 PM

Don and others - 

I think Rich is right on this - but let's 'go to the records' to make sure.