The tune played on the whistler has in its lyrics "Show Me The Way To
Go Home" and I'm not sure if this is the title.  I have the same tune
on a whistler and it seems to show up some problems with the one in
question.

The cam follower is apparently not changing the pitch as it should.
There may be a leak somewhere in that the tone is interrupted with each
stroke of the bellows.  Towards the end of the tune the sound clears
up.  It might not be a big task to clean and lubricate the mechanism
although it looks brand new in the video.  My whistler is from the
late 1970s and still playing nicely.

Bill Chapman
La Quinta, California - in another record-breaking heat wave!

 [ Ref. https://www.youtube.com/watch?v=UiYQ0-iya8I 
 [ The reservoir at the bottom barely inflates; there must be
 [ a big leak somewhere.  -- Robbie