My mother singing "There's long, long trail a-winding". I found it somewhat unsettling, having no idea where it would lead.

I must take this opportunity to point out that Banjiman is essentially correct in his observation.

Until the advent of violent protests by PETA and their supporters,
Accordions were made by imprisoning medium-sized dogs in flexible boxes. The keys were connected to various needles, spurs, small knives and rotary drills, some of which were also capable of producing sounds of their own. The bellows served to keep the poor beast going during the repeated torture sessions. The dog survived on the rats and mice that would invade the instrument while it was kept in the attic.
MD