which (of three or more) / which one /

what

(informal, humorous) A phrase used to feign ignorance to the existence of a concept.

何事: what sort of matter; unspecified matter

何奴: which one, who

"to end as a fruitless blossom": to end without bearing fruit (results)

何が何でも: at all costs, whatever it takes

beforehand; in advance

前掛け: apron

生演奏: live performance