I just got out of bed, where I was reading, because I couldn't wait to post this.
The book is "A Chorus of Detectives," which I had somehow missed.....
And right there on page 7, I read, " ...Maria Jeritza, the Viennese
Interesting only in light of a recent discussion over in MUSIC, MUSIC, MUSIC
Didn't Reader's Digest used to have a category called "Our Forgetful Authors?"