In 2 earlier messages I noticed that both GiMi53 and j_campbell were
interested in the background music ...

GiMi53 asked,

I really would like to know the reference for the music

... and j_campbell responded by saying,

The music is "Cherubin" from an album of various artists called.
"La Grande Passione". I wish I knew more about it

I am happy to supply what I have found ...

There are 5 copies of "La Grande Passione" available on amazon.com

La Grande Passione ~ Arias ~ Starbucks [CD] [COMPILATION]

BTW, while searching, I also found La Grande Passione, Volume II
-- but that's not the same CD compilation. 

That is a compilation of beautiful and familiar opera arias.  The playlist
reads like a who's who of romantic opera. 

The track in question, "11. Massenet's Cherubin, Dawn Upshaw" is
from and opera written by Jules-Émile-Frédéric Massenet
... youi could also read  Jules Massenet on Wikipedia

The Stanford site gave this non-working link for the libretto,
http://www.intac.com/~rfrone/massenet/operas/17Cherubin/17-libretto.htm

I used The Internet Archive to access the Chérubin Libretto

Wonderful selection of music and a perfect match to the photography of
Valerie Ducom.

Many thanks to j_campbell for this video. 

BTW, you should try to get the whole CD from your son.  

--
Martin