Robots Rock and Automata Ululate (or, how I learned to stop worrying and love the musings of mechanoids' melodies)

There is a reading... (pdf of an article on musical clocks)

...and there is music...
Weber Maestro Orchestrion

Organ clocks

Beatles Being for the Benefit of Mr. Kite!

(and more organ clocks)

Nancarrow's study #3 for player piano
Golf Clock with music

Stockhausen's Telemusik

glass bell cuckoo whistling automaton mechanical whistling birds

Antheil's Ballet Mechanique (for three xylophones, four bass drums, tamtam, two grand pianos, seven electric bells, three airplane propellors, siren, and 16 player pianos)