The Glory (????) of the Human Voice

Only tracks 1 to 8 (side A of my vinyl LP which does not contain track 5) have been sung by Florence Foster Jenkins.
Tracks 9 to 12 (side B of my vinyl LP) have been sung by Jenny Williams and Thomas Burns.
On the cover of the LP there is the following text:

As Madame Jenkins found her way to the recording studios from the concert hall, perhaps Miss Williams
and Mr. Burns, with the start they may surely expect from the disc, will one day attempt to fill, in a
measure, the gap left by Madame Jenkins' departure from the musical scene.