If you get hold of a copy of The Early Doors by Harold Scott it will give you a very good idea. It is avery old book so you may need to order from library or go to british museum. Black face really took post 1850 when the "nigger minstrels" and "coon" performers arrived from USA and were imitiated by british artists even to the extent that black uk artists copied the imitators i.e you had black performers dressing up pretending to be white performers imitating black performers.
Music hall began in the 1850s and before that there were song and supper rooms like the Coal Hole, Cyder Cellars, Evans etc that laid on entertainment ofetn provided by the members. This was often risque to say the least and also a forum for often vicious attacks on public figures ( usually justified) and wer sometimes called Comus Courts or Judge and Jury show - the most famous of the later was run by the self styles Baron Renton Nicholson at the Coal Hole