There are some interesting mechanical music related film clips on the British Pathe website.

Here are a few to start:

The Grote Gavioli (1966): http://www.britishpathe.com/record.php?id=2081
The Kursaal Flyer (1962): http://www.britishpathe.com/record.php?id=1292
The St Albans Museum (1967): http://www.britishpathe.com/record.php?id=2331
Barrel Organ manufacture (1960): http://www.britishpathe.com/record.php?id=908
Gysbert Perlee (1955): http://www.britishpathe.com/record.php?id=683

There are some fairground clips also, this is a silent view of fairs at Barnett and Nottingham in 1928: http://www.britishpathe.com/record.php?id=9952

If you find any more clips of interest on the British Pathe site, post a link to it in this thread.

This unusual (silent) film clip shows a "Radio Barrel Organ" in 1923.

This wasn't an organ at all, but a gimmick by radio equipment manufacturers to promote their products, because the new radio broadcasts were such a novelty that the public had never heard a radio station before!

Not sure what the "Antonio" reference is...does anyone know...something to do with barrel organs maybe?

http://www.britishpathe.com/record.php?id=19848

Oh Oh Antonio was a popular tune of the day sung by Florrie Forde.
Edison Bell recording link
http://www.youtube.com/watch?v=rdaXZEbHi88

Hi George.

Very good that, I have a Phonograph cylinder of Florrie Forde singing "Mary had a little lamb"!

But the question is, as it is a silent film, I wonder why the caption referred to the song, unless it was "top of the pops" in 1923...but saying that, the recording in the YouTube clip is pre 1909, because it has the vocal introduction to the song on the cylinder and they stopped doing that around 1909?

Oh Oh Antonio was a popular music hall song composed by Clarence Wainwright Murphy and Dan Lipton in 1908.
I think songs lasted a bit longer back then before radio, most people only heard artists singing them by attending live performances in the Music Halls.
Regards
George.