[ Ref. 191027 MMDigest & https://youtu.be/k8sQK5Dm8gs
 

I have listened to all of the unidentified cylinder music box tunes 
that Eric Stott inquired about in 191027 MMDigest and the only one that
I recognize is the eighth one.  It appeared on roller ("cob") #182 for
the 20-note cob roller organ under the title "Life Let Us Cherish",
and a list of cobs available in 1885 that appeared in a catalog of that
year and in many cases included composers' names listed the composer
of the tune as "W. A. Mozart" (the great classical composer Wolfgang
Amadeus Mozart, 1756-1791).

Also, there is undated sheet music in the Lester S. Levy Sheet
Music Collection at Johns Hopkins University (online at
http://levysheetmusic.mse.jhu.edu/ ) with a date assigned of
"1799-1803" that is headed "Life Let Us Cherish. A Favorite Ballad
Composed by Mozart. Arranged also with Variations by the same Author".
H. C. Colles, Ed., Grove's Dictionary of Music and Musicians, 3rd Ed.
(New York, MacMillan, 1935), Theodore Baker, comp., A Biographical
Dictionary of Musicians (New York, G. Schirmer, 1900).

Other sources, however, instead attribute the tune to the well-known
Swiss composer, teacher, author and music publisher Hans Nageli (1773-
1836), who wrote and published a large number of songs with piano
accompaniment.  Its title in German was "Freut euch des Lebens" and it
was published in 1794.

Richard Dutton