Green’s Dictionary of Slang

the sound of wailing children.

c.1698		B.E. Dict. Canting Crew n.p.: Marriage-music Childrens Cries.
1725		New Canting Dict. [as cit. c.1698].
1737, 1759, 1760, 1776		Bailey Universal Etym. Eng. Dict. [as cit. c.1698].
1785, 1788, 1796		Grose Classical Dict. of the Vulgar Tongue.
1811		Lex. Balatronicum.
1823		Egan Grose’s Classical Dict. of the Vulgar Tongue.
1862		E. de la Bédollière Londres et les Anglais 316/1: marriage music, [...] vagissement d’un enfant au berceau.
1892		Oakleigh Leader (Nth Brighton, Vic.) 3 Sept. 45/5: ‘Stop that marriage music’ [...] ‘Stop that baby yelling’.