Green’s Dictionary of Slang

sol-fa n.

[SE sol-fa man, a music teacher; thus f. the clerk’s leading of the sung responses in church]

a parish clerk.

[UK]Grose Classical Dict. of the Vulgar Tongue.
[UK]Lex. Balatronicum.
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue.
[US]Matsell Vocabulum.